Feature Request: Cheatsheet / Reference / Getting Started Page

[mofosyne]

Is your feature request related to a problem? Please describe.
If handing this to a new user, it would be nice if there is a dedicated section for at least a quickstart / cheatsheet.
Especially of the shortcut keys on the keyboard (e.g. t-deck)

Describe the solution you'd like
At minimum add a dedicated cheatsheet page at a discoverable location (e.g. settings/about tab etc...)

Describe alternatives you've considered
Alternative is to just let them guess or give them a printed paper cheatsheet.

Additional context
Ease of learning the interface in the field.

[github-actions]

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