Add category field to edit model configuration page

[ohltyler]

Issue #, if available:

Description of changes:

This PR adds the category field component on the edit model configuration page. This is an optional field that, when selected, will create and run a high cardinality / multi-entity detector.

Changes include:

• Adds categoryField field to the detector interface
• Adds category field component to the edit model config page (including validation & edge case of no eligible fields)
• Refactors and adds the categoryField field to the Additional settings component on detector configuration page
• Adds unit tests

All wording has been approved by UX and tech writer.

Screenshots:

1. Category field (unselected):

2. Category field (selected):

3. Category field (no eligible fields in index):

4. Category field under 'Additional settings':

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[yizheliu-amazon]

Looks good to me. Feel free to merge it after addressing my comment.

[yizheliu-amazon]

you may delete this method, I think original CategoryFieldProps is already good for integration

[ohltyler]

I added this to update the isHCDetector flag in editFeatures. This was needed to properly validate the form in the case of the box being checked, but no value being set.

[ohltyler]

Basically, since we don't perform validation immediately after enabling the checkbox now, this became an issue that had to be fixed by updating isHCDetector in editFeatures, so we can properly validate/invalidate the category field in handleSaveChanges().

[yizheliu-amazon]

Got it. I thought you may delete it since I already modified code to support validation only when checkbox is enabled. But I think your new implementation is better. Approved.

[yizheliu-amazon]

When I open Edit feature page for non-HC detector in my local workspace, the no eligible fields in index callout will show up in the beginning and it will be gone very soon, does that happen to you as well?

[ohltyler]

When I open Edit feature page for non-HC detector in my local workspace, the no eligible fields in index callout will show up in the beginning and it will be gone very soon, does that happen to you as well?

I see, yes it does flash that as it loads in the index details. Let me look into improving the loading state.

[yizheliu-amazon]

When I open Edit feature page for non-HC detector in my local workspace, the no eligible fields in index callout will show up in the beginning and it will be gone very soon, does that happen to you as well?

I see, yes it does flash that as it loads in the index details. Let me look into improving the loading state.

I will see it as non-blocking issue. If it takes too long to fix it, let's create issue for it and improve it later.

[ohltyler]

When I open Edit feature page for non-HC detector in my local workspace, the no eligible fields in index callout will show up in the beginning and it will be gone very soon, does that happen to you as well?

I see, yes it does flash that as it loads in the index details. Let me look into improving the loading state.

I will see it as non-blocking issue. If it takes too long to fix it, let's create issue for it and improve it later.

really quick fix. added test case as well. thanks for finding that issue

[saratvemulapalli]

Changes look good to me.