feat: add games xblock editor

[Faraz32123]

With this PR, games xblock editor is in place now!

• copy code from https://github.com/openedx-unsupported/frontend-lib-content-components/pull/371/files to authoring MFE
  • It includes refactoring in .scss files, useIntl, replacing deprecated dependencies, fixing reducers, fixed cancel/close editor button, fix dragging the cards, edit some styles and also removed duplicate styling etc.
  • Its related & required edx-platform PR: feat: use new MFE editor by default for games xblock edx-platform#37641

Changes:

Screen.Recording.2025-11-12.at.6.44.32.PM.mov

[codecov]

Codecov Report

❌ Patch coverage is 10.63830% with 42 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.70%. Comparing base (54cfbeb) to head (9610f07).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/editors/data/redux/game/reducers.js	2.50%	28 Missing and 11 partials ⚠️
src/editors/data/redux/game/selectors.js	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2656      +/-   ##
==========================================
- Coverage   94.83%   94.70%   -0.14%     
==========================================
  Files        1234     1235       +1     
  Lines       27764    27808      +44     
  Branches     6094     6104      +10     
==========================================
+ Hits        26331    26335       +4     
- Misses       1375     1404      +29     
- Partials       58       69      +11     

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[bradenmacdonald]

Can you please provide some context here? What is the "games" XBlock? I had seen some references to the games editor in the code before, but I thought it was just a sample/template editor that could be used for making new editors, not an actual XBlock.

[Faraz32123]

Can you please provide some context here? What is the "games" XBlock? I had seen some references to the games editor in the code before, but I thought it was just a sample/template editor that could be used for making new editors, not an actual XBlock.

openedx proposal link for this.

[bradenmacdonald]

Ah, thanks. I hadn't seen that.

Can you please make sure this PR is following our best practices checklist before you mark it as not a draft?

• Any new files are using TypeScript (.ts, .tsx) - index.jsx should be index.tsx
• Avoid propTypes and defaultProps in any new or modified code.
• Tests should use the helpers in src/testUtils.tsx and editor tests should use editorRender from @src/editors/editorTestRender
• 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.
  • it looks like you are adding the new editor's state to the Redux store. I guess this is because you are copying existing code, so it's OK in that case but I'd prefer that we do not use redux at all for this new editor.
• 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'

[kdmccormick]

As I mentioned on the product proposal, we cannot be hard coding new block editors into the platform.