feat: Selection right-click/long-press menu

[personalizedrefrigerator]

Summary

Adds a long-press/right-click menu to the selection tool.

Tasks

• [x] Localize strings
• [x] Fix iOS (or touchscreen device in general?) bug — clicking on the "..." with a touchscreen does nothing.
• [ ] Fix paste bug — some devices paste copied vector objects as PNGs.
• [x] Fix Firefox long-press issue (context menu dismissed).
• [x] Use a clipboard icon for the "paste" menu item.
• [x] Handle the case where the menu is opened near the top/bottom of the screen and needs to be moved.
• [x] Accessibility as described in the MDN article for the menu ARIA role.
• [x] Automated tests -- some.

Screenshot

[github-actions[bot]]

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