[Feature Request]: Keyboard shortcuts for navigating FreeTube

Guidelines

[X] I have searched the issue tracker for open and closed issues that are similar to the feature request I want to file, without success.
[X] I have searched the documentation for information that matches the description of the feature request I want to file, without success.
[X] This issue contains only one feature request.

Problem Description

I'd like to propose adding more shortcuts, such that FreeTube is even better to use, and navigating around is made easier, when using the keyboard (read: better navigation via keyboard, less 'tab'ing to get to buttons).

Proposed Solution

I have two suggestions:

Shortcuts for the "tabs" on the left (subscriptions, playlists, history, etc.). I kinda like the way Microsoft does it with their software, where one can press, say, Ctrl+n, in which 'n' refers to the item order on the list, and it takes them to that "tab." Say I have subscriptions, channel list, playlists, history. Pressing Ctrl+2 would take me to "channel list", regardless of where I am within the app. With such shortcut, one could more easily reach these other parts of the app via keyboard without having to tab around to get to the button.
Shortcuts to switch between "tabs" in the subscription feed (videos, shorts, live, community). Ctrl+Tab could work great for this. If I am in "videos", for instance, Ctrl+Tab (or your shortcut of preference) could switch to "shorts". Another Ctrl+Tab would take me to "live".

These are but some suggestions. Would be interesting having more ways to navigate FreeTube more easily with the keyboard.

Alternatives Considered

I don't really have any alternative solutions. Users could just use the mouse, or tab around with their keyboard.

Issue Labels

ease of use improvement, new keyboard shortcut

Additional Information

No response

FreeTubeApp / FreeTube