feature: Bind '?' to show mappings, or maintain them in help docs

[qaptoR]

Did you check the docs?

• [X] I have read all the docs

Is your feature request related to a problem? Please describe.

The keymaps at any given point for using the window are not obvious, and obfuscated through many layers

Describe the solution you'd like

most windowed neovim systems come with a mapping for '?' to show the currently available bindings at for the given state of the window/system.

currently, you cannot even go to the :h pages for the general bindings as it directs the user to the github wiki as a reference.

this is not helpful if the internet is down and a user would still like to make local commits etc.

Describe alternatives you've considered

I would consider maintaining the bindings list within the help docs much more intuitive for regular nvim users, since we are pushed early and often to seek out detailed information there about any individual system.

Additional context

No response