feat(ui/frontend): add shortcuts for tools

[ShaunSHamilton]

Adds shortcuts to tools. Global event listener is added for the following keydown events:

Keys	Result
Ctrl + Alt + f	Rust Fmt on the code
Ctrl + Alt + m	Miri
Ctrl + Alt + x	Macro Expansion
Ctrl + Alt + c	Clippy

The above can easily be changed. However, certain combinations are reserved by different browsers.

What this looks like

I realise the background colour from the issue was probably for emphasis. So, am obviously happy to change/remove it.

Closes #844

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Aside: More ESLint/editor rules should be added, as I constantly needed to avoid saving with formatting.

[tgross35]

Could I suggest adding something like ctrl+alt+t to run tests? Helpful when you have both a main and #[test]s

[tgross35]

There's also #814 which suggested capturing ctrl+s to run the code. That's the current behavior of the monaco editor, but it could be good to capture it for the others

[ian-h-chamberlain]

FWIW, shift+alt+f is the default VSCode shortcut for formatting a document on macOS and Windows (but not Linux, it seems?), so users of the Monaco editor might find that more familiar, although it doesn't use Control like the shortcuts propsed here.

On macOS at least (and I would guess on other OSes as well), some of these shortcuts seem to have uses already within the editor:

• cmd+alt+f seems to open a find+replace dialog in ace and monaco
• cmd+alt+c toggles case-sensitivity for searches in monaco

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This PR looks like it has been open a while without much movement, but I just wanted to provide some feedback on the choice of shortcuts. If there is any interest in reviving this I think it would definitely be a nice feature to have!