Add dark mode to dashboard

[visini]

This adds basic dark mode support to the dashboard. What do you think about this idea?

How it looks like (note the toggle button in the footer):

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I can explore refining the dark mode styling further for specific elements...

[fractaledmind]

I like this idea, tho I want to refine the styles and the switcher. But, this is a great start!

[fractaledmind]

Thinking about it more, what if we simply rely on the user's chosen theme and don't worry about a manual switcher...

[visini]

I refined the styles and reverted to dark theme based on @media (without manual switcher). What do you think? 😊

Generation summary hover:

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