fix(files): render snekFinder even without initBackendLink

This change updates the rendering behaviour of the SnekFinder.
Before the loading state of the SnekFinder was always true, unless
a initBackendLink was set. Due to this, the rendering of the SnekFinder
failed for all applications that did not set the initBackendLink through
`jaen-pages.json` or cache.

Now the loading state is set to false regardless of the initBackendLink.
Without the initBackendLink,
```js
localStorage.removeItem('snek-finder-osg-backend-root')
```
is called to remove the cached snekFinder data.

packages/jaen/package.json

@@ -54,7 +54,15 @@
     "react-redux": "^7.2.6",
     "react-use-analytics-api": "^1.4.16",
     "typescript": "^4.3.5",
-    "uuid": "^8.3.2"
+    "uuid": "^8.3.2",
+    "gatsby-alias-imports": "^1.0.6",
+    "gatsby-plugin-compile-es6-packages": "^2.1.1",
+    "gatsby-plugin-emotion": "^7.2.0",
+    "gatsby-plugin-image": "^2.2.0",
+    "gatsby-plugin-react-helmet": "^5.2.0",
+    "gatsby-plugin-sharp": "^4.2.0",
+    "gatsby-source-filesystem": "^4.2.0",
+    "gatsby-transformer-sharp": "^4.2.0"
   },
   "devDependencies": {
     "@snek-at/storybook-addon-chakra-ui": "^1.0.0-beta.1",
@@ -72,15 +80,7 @@
     "babel-plugin-inline-react-svg": "^2.0.1",
     "babel-plugin-relative-path-import": "^2.0.1",
     "babel-preset-gatsby-package": "^2.2.0",
-    "gatsby-alias-imports": "^1.0.6",
-    "gatsby-plugin-compile-es6-packages": "^2.1.1",
-    "gatsby-plugin-emotion": "^7.2.0",
-    "gatsby-plugin-image": "^2.2.0",
-    "gatsby-plugin-react-helmet": "^5.2.0",
-    "gatsby-plugin-sharp": "^4.2.0",
     "gatsby-plugin-webpack-bundle-analyser-v2": "^1.1.24",
-    "gatsby-source-filesystem": "^4.2.0",
-    "gatsby-transformer-sharp": "^4.2.0",
     "isomorphic-fetch": "^3.0.0"
   }
 }

packages/jaen/src/containers/SnekFinder/index.tsx

@@ -50,6 +50,9 @@ const Finder: React.FC<FinderProps> = ({mode = 'browser', ...props}) => {
       }
 
       run()
+    } else {
+      localStorage.removeItem('snek-finder-osg-backend-root')
+      setLoading(false)
     }
   })