Compact UI

[DarkFox]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

There is a lot of air around a lot of the UI elements, which is great for some, but others would prefer a more compact layout, to be able to see more content at the same time.

Describe the solution you'd like
A clear and concise description of what you want to happen.

Adding a toggle to make the margins and padding of elements smaller, text/line height smaller, remove the text labels on the navigation bar, and probably other things that could make the UI more compact, without losing functionality.

Describe alternatives you've considered
If applicable: a clear and concise description of any alternative solutions or features you've considered.

Getting used to the UI, and accepting that I can't see as much content at the same time, but otherwise not really. 😅

Additional context
Add any other context or screenshots about the feature request here.

Example of the icon-only navbar in Tusky. Nevermind, that's already a feature.