feat: Add Vencord styles to popout windows

[Masterjoona]

Previously vencord styles and quick css was only getting added to the main window and not popout windows, this fixes it

example
before

after

[Sqaaakoi]

I'm glad this finally exists. It's a long overdue feature.

For anyone else trying to make sense of this: each StyleManager operates autonomously and does not get centrally managed as they directly hook into SettingsStore

[Vendicated]

don't use a class that's terrible

[Masterjoona]

ill try to come up with somthing else then

[Masterjoona]

i came up with something better

[Vendicated]

could you update this pr please? and it would be good to add all styles, even ones added by plugins and managed styles

[Vendicated]

This should be considerably easier to do now that all vencord styles are in one central DOM node

[Vendicated]

[Masterjoona]

Yeah that's much better!

Though I'm just not sure how to handle plugins (blurnsfw or clienttheme) that might need to update their styles

[Vendicated]

Idk tbh. It's probably fine to require a re-open of the popout? Users won't change the settings of those plugins too often

[Masterjoona]

It's probably fine to require a re-open of the popout?

Fine by me

[Vendicated]

epic lint fail

[Vendicated]

thanks!