Fix context menu from going off-screen

[lankaukk]

Problem: The context menu for canvas elements was going off screen.

Fix: Now the context menu content scrolls vertically, and has a maximum height responsive to the visible screen height.

Before	After
Content Cell	Content Cell
Content Cell	Content Cell

Manual Tests: I hereby swear that:

• [ ] I opened a hydrogen project and it loaded
• [ ] I could navigate to various routes in Preview mode

[github-actions[bot]]

Try me

[relativeci[bot]]

#13600 Bundle Size — 62.65MiB (~+0.01%).

3c02312(current) vs 6339ece master#13586(baseline)

[!WARNING] Bundle contains 70 duplicate packages – View duplicate packages

Bundle metrics   2 changes 1 regression

	Current #13600	Baseline #13586
Initial JS	45.73MiB(~+0.01%)	45.73MiB
Initial CSS	0B	0B
Cache Invalidation	22.23%	21.56%
Chunks	31	31
Assets	34	34
Modules	4377	4377
Duplicate Modules	525	525
Duplicate Code	31.64%	31.64%
Packages	469	469
Duplicate Packages	70	70

Bundle size by type   2 changes 1 regression 1 improvement

	Current #13600	Baseline #13586
JS	62.64MiB (~+0.01%)	62.64MiB
HTML	11.16KiB (-0.33%)	11.2KiB

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