Lack of Theme Switching

[mohamed-benoba]

Light mode at Fizzy is slick. Dark mode sucks, and there is no way to switch to light mode, it takes the system/browser theme.

[robzolkos]

This may help in a pinch https://github.com/bramus/chrome-dark-mode-toggle

[Maxiviper117]

@robzolkos that extension only works on chrome based browsers that use Web Preferences API, MS Edge doesn't use that API.

Fizzy should really have built in toggle.

[ViniciusLisboa07]

I've opened a PR adding a built-in theme toggle.

It introduces a button in Account Settings to switch between light and dark mode, saving the preference in localStorage.

#1899

This is just a proposed implementation — do you guys think it's enough?