Add keyboard shortcuts

[eimlav]

Provides shortcuts that enable the user to toggle between tabs.

Also would have liked to properly map the shortcuts into settings but seems that's still an existing open issue: godotengine/godot-proposals#2024.

Testing

Tested on MacOS. Not 100% sure whether KEY_META maps properly on Windows or not, so if anyone could test this on windows that would be great.

Screen.Recording.2023-09-12.at.14.54.36.mov

[MakovWait]

Cool!
Anyway, seems like the feature is already implemented in Godot (see Next Script, Previous Script).

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Whereas shortcut settings are forbidden we still has opportunity to enable user to configure shortcuts via Editor Settings: example

[eimlav]

Genuinely did not realise there already were shortcuts otherwise I wouldn't have done this lol. Oh well guess this is kind of pointless then.

Also thanks for sharing that example. I'll have to bookmark it for next time I come across something similar.

Will close PR now thanks for looking!