feat(ui-editor): poc a modal for adding components to form

[nkylstad]

DRAFT, only for comparing.

Description

POC for removing component column in favor of a button in-context of the form. The button opens a modal, where the service owner can select a component type to add, and edit the ID before adding to the form.

Test coverage is not great, and there may still be some texts and such that are not in the texts file.
I have added a README to the folder containing the POC components pointing out that the folder should either be deleted once the user test is done, or the code should be refactored.

Everything is implemented behind a feature flag, and as such should not affect regular Studio users. Asking for this PR to be approved so we can use if for a live user test next week.

Related Issue(s)

• #{issue number}

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)

[codecov]

Codecov Report

Attention: Patch coverage is 49.45055% with 46 lines in your changes missing coverage. Please review.

Project coverage is 95.10%. Comparing base (9ec0e3b) to head (39ac252).

Files with missing lines	Patch %	Lines
...ontainers/DesignView/AddItemModal/AddItemModal.tsx	37.50%	20 Missing ⚠️
...ners/DesignView/AddItemModal/ItemInfo/ItemInfo.tsx	38.88%	11 Missing ⚠️
...nd/packages/ux-editor/src/utils/formLayoutUtils.ts	25.00%	6 Missing ⚠️
...ignView/AddItemModal/ItemCategory/ItemCategory.tsx	54.54%	5 Missing ⚠️
...tainers/DesignView/AddItemModal/AddItemContent.tsx	72.72%	3 Missing ⚠️
...packages/ux-editor/src/containers/FormDesigner.tsx	75.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #13568      +/-   ##
==========================================
- Coverage   95.29%   95.10%   -0.19%     
==========================================
  Files        1653     1659       +6     
  Lines       22030    22119      +89     
  Branches     2594     2605      +11     
==========================================
+ Hits        20994    21037      +43     
- Misses        790      835      +45     
- Partials      246      247       +1     

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[framitdavid]

Great work! I love that you documented this as a POC and noted that further improvements are necessary if we decide to continue after the test. 👏