feat: delete tag

[mgwozdz-unicon]

Description

This is part of openedx/modular-learning#260 - a split-out so that it's smaller PRs to review.

The intention is to implement the actual deletion logic here, but not implement the Delete Modal yet.
The Delete Modal is replaced by a simple browser confirm for now, the PR to implement that is #3024.

To deliver the Delete functionality cleanly, I have included quite a bit of refactoring, which includes adding a React context.

Both PRs are designed to be independent, mergable in any order.

Important

After merging the other PR, the browser confirm should be replaced with its <DeleteModal>.

Note to reviewer

If there's missing test coverage, please allow me to delay addressing that until it the PR undergone a first review.

Testing instructions

Please see AC of the related ticket for exact behavior to test: openedx/modular-learning#260.

But: note that anything related to the delete modal is in the sister PR.

Use of AI

• AI helped write the tests
• AI split apart the code from the delete functionality to have two independent PRs

Best Practices Checklist

We're trying to move away from some deprecated patterns in this codebase. Please
check if your PR meets these recommendations before asking for a review:

• Any new files are using TypeScript (.ts, .tsx).
• Avoid propTypes and defaultProps in any new or modified code.
• Tests should use the helpers in src/testUtils.tsx (specifically initializeMocks)
• Do not add new fields to the Redux state/store. Use React Context to share state among multiple components.
• Use React Query to load data from REST APIs. See any apiHooks.ts in this repo for examples.
• All new i18n messages in messages.ts files have a description for translators to use.
• Avoid using ../ in import paths. To import from parent folders, use @src, e.g. import { initializeMocks } from '@src/testUtils'; instead of from '../../../../testUtils'

[openedx-webhooks]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.50%. Comparing base (8fe6577) to head (adc5299).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3035      +/-   ##
==========================================
+ Coverage   95.47%   95.50%   +0.02%     
==========================================
  Files        1386     1394       +8     
  Lines       32665    32967     +302     
  Branches     7483     7569      +86     
==========================================
+ Hits        31188    31484     +296     
- Misses       1408     1414       +6     
  Partials       69       69              

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[brian-smith-tcril]

Thank you for this!

[brian-smith-tcril]

This addresses #3025 (comment)

Thank you!

[brian-smith-tcril]

This improved comment resolves #3025 (comment)

Thank you!

[brian-smith-tcril]

This reordering along with the deleteTagMutation.isPending guard in TagListTable resolves #3025 (comment)

Thank you!