[SIEM][Detection Engine] critical blocker with the UI crashing

## Summary

If you have filters which do not have a $app and state it blows up which isn't what we want to happen. This adds a function which default adds it on the UI if it does not exist

<img width="915" alt="Screen Shot 2020-01-28 at 10 07 39 AM" src="https://user-images.githubusercontent.com/1151048/73296325-bd17b900-41c6-11ea-9ba4-30715224829c.png">

Test:

Post query with everything

```ts
./post_rule.sh ./rules/queries/query_with_everything.json
```

Then visit in the details section of the UI and it should no longer blow up.

### Checklist

Use ~~strikethroughs~~ to remove checklist items you don't feel are applicable to this PR.

~~- [ ] This was checked for cross-browser compatibility, [including a check against IE11](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#cross-browser-compatibility)~~

~~- [ ] Any text added follows [EUI's writing guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses sentence case text and includes [i18n support](https://github.com/elastic/kibana/blob/master/packages/kbn-i18n/README.md)~~

~~- [ ] [Documentation](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#writing-documentation) was added for features that require explanation or tutorials~~

- [x] [Unit or functional tests](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#cross-browser-compatibility) were updated or added to match the most common scenarios

~~- [ ] This was checked for [keyboard-only and screenreader accessibility](https://developer.mozilla.org/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Accessibility#Accessibility_testing_checklist)~~

### For maintainers

~~- [ ] This was checked for breaking API changes and was [labeled appropriately](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#release-notes-process)~~

- [x] This includes a feature addition or change that requires a release note and was [labeled appropriately](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#release-notes-process)

x-pack/legacy/plugins/siem/public/pages/detection_engine/rules/components/description_step/index.test.tsx

@@ -0,0 +1,185 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { addFilterStateIfNotThere } from './';
+
+import { esFilters } from '../../../../../../../../../../src/plugins/data/public';
+
+describe('description_step', () => {
+  describe('addFilterStateIfNotThere', () => {
+    test('it does not change the state if it is global', () => {
+      const filters: esFilters.Filter[] = [
+        {
+          $state: {
+            store: esFilters.FilterStateStore.GLOBAL_STATE,
+          },
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+        {
+          $state: {
+            store: esFilters.FilterStateStore.GLOBAL_STATE,
+          },
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+      ];
+      const output = addFilterStateIfNotThere(filters);
+      const expected: esFilters.Filter[] = [
+        {
+          $state: {
+            store: esFilters.FilterStateStore.GLOBAL_STATE,
+          },
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+        {
+          $state: {
+            store: esFilters.FilterStateStore.GLOBAL_STATE,
+          },
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+      ];
+      expect(output).toEqual(expected);
+    });
+
+    test('it adds the state if it does not exist as local', () => {
+      const filters: esFilters.Filter[] = [
+        {
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+        {
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+      ];
+      const output = addFilterStateIfNotThere(filters);
+      const expected: esFilters.Filter[] = [
+        {
+          $state: {
+            store: esFilters.FilterStateStore.APP_STATE,
+          },
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+        {
+          $state: {
+            store: esFilters.FilterStateStore.APP_STATE,
+          },
+          meta: {
+            alias: null,
+            disabled: false,
+            key: 'event.category',
+            negate: false,
+            params: {
+              query: 'file',
+            },
+            type: 'phrase',
+          },
+          query: {
+            match_phrase: {
+              'event.category': 'file',
+            },
+          },
+        },
+      ];
+      expect(output).toEqual(expected);
+    });
+  });
+});

x-pack/legacy/plugins/siem/public/pages/detection_engine/rules/components/description_step/index.tsx

@@ -97,6 +97,16 @@ const buildListItems = (
     []
   );
 
+export const addFilterStateIfNotThere = (filters: esFilters.Filter[]): esFilters.Filter[] => {
+  return filters.map(filter => {
+    if (filter.$state == null) {
+      return { $state: { store: esFilters.FilterStateStore.APP_STATE }, ...filter };
+    } else {
+      return filter;
+    }
+  });
+};
+
 const getDescriptionItem = (
   field: string,
   label: string,
@@ -105,7 +115,7 @@ const getDescriptionItem = (
   indexPatterns?: IIndexPattern
 ): ListItems[] => {
   if (field === 'queryBar') {
-    const filters = get('queryBar.filters', value) as esFilters.Filter[];
+    const filters = addFilterStateIfNotThere(get('queryBar.filters', value));
     const query = get('queryBar.query', value) as Query;
     const savedId = get('queryBar.saved_id', value);
     return buildQueryBarDescription({