Add Tooltip for Remove from Collection List Button

[SalmanNajah]

Issue: Add Tooltip for Remove from Collection List Button

Fixes #3882

• This PR adds a tooltip to 'X' button in Collection's sketch list view as described in the above issue to make the intent of the 'X' button clear to the users.
• Added unit tests for Collection's sketch list view.
• Used existing SketchRemoveARIA for the Tooltip content

  p5.js-web-editor/translations/locales/en-US/translations.json

  Line 518 in 71e272e

  "SketchRemoveARIA": "Remove sketch from collection",

Demo:

Screen.Recording.2026-02-21.at.2.15.38.PM.mov

Changes:

• Wrapped <button> inside <Tooltip content={t('Collection.SketchRemoveARIA')}>
• Added unit tests for Collection's sketch list view.

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• has no typecheck errors (npm run typecheck)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123
• meets the standards outlined in the accessibility guidelines

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[SalmanNajah]

Hi @raclim, Could you please review this PR?