Feat/docstore rename delete actions (optimised for dark theme)

[sahil2448]

optimized docstore's rename/delete feature for dark theme

fix(ui): improve dark theme contrast for docstore action menu button

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Summary

This PR addresses reviewer feedback about the 3-dot action button (rename/delete menu) not being visually clear in dark theme.

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What I changed

• Updated the 3-dot action IconButton styling in both docstore views:
  • Grid/Card view
  • Table/List view
• Made the button theme-aware for:
  • Icon color
  • Background color
  • Border color
  • Hover border contrast

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Why this change

In dark mode, the old button colors had low contrast. This update improves visibility while keeping the same behavior and UI flow.

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Scope

• UI styling only
• No business logic changes
• No API/state changes

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Verification

• Built UI successfully:

  npm --prefix packages/ui run build

[gemini-code-assist]

Code Review

This pull request introduces management actions for document stores, including rename and delete capabilities in both card and table views. It adds action menus, permission-based access control, and local state management to improve the user experience during store modifications. Feedback provided suggests using unique IDs for React keys, consolidating duplicated styles for action buttons, and refactoring error message parsing for better maintainability.