Replace “Remove from Collection” button with dropdown in Collection item row

[krishnavasnani07]

Fixes #3883

Summary

This PR replaces the existing inline “Remove from Collection” button in the collection detail view with a TableDropdown actions menu.

This aligns the collection sketch list UI with existing dropdown patterns used across the editor (e.g., Sketch List and Collection List views), improving clarity and consistency.

Changes

• Replaced the inline remove button in CollectionItemRow with TableDropdown
• Added a MenuItem for “Remove from Collection”
• Preserved existing confirmation dialog behavior
• Kept Redux action (removeFromCollection) logic unchanged
• Ensured styling consistency with other table dropdowns
• Added missing translation key for Collection.RemoveFromCollection

Why

The previous “X” icon button could be ambiguous regarding its purpose (remove from collection vs delete sketch).

Using a dropdown:

• Improves clarity of available actions
• Aligns with existing UI patterns
• Allows future extensibility (e.g., Share, Move, etc.)

Testing

Verified locally:

• Collection detail page renders dropdown correctly
• Remove action works as expected
• Confirmation dialog appears before removal
• No lint errors (npm run lint)
• No typecheck errors (npm run typecheck)
• No UI regressions observed

Screenshots

Before

• Inline remove button

After

• Dropdown menu with “Remove from Collection” option

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• meets the standards outlined in the accessibility guidelines