[dev-tools] Robust shortcut detection (#81756)
This PR resolves NEXT-4610 by using `e.code` over `e.key` in both
storing and detecting keyboard shortcuts.
Consider this problematic keybind: Alt + L
If we capture `e.key` here then it will correspond to a glyph (¬)
because pressing Alt + L creates this character. While `e.code` will
give us `KeyL` as the value which we also later use in `useShortcuts()`
to match the keybind correctly without having to detect glyphs.
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After this PR:
https://github.com/user-attachments/assets/222fc65f-7320-4487-b387-ea263acfe387
