Move the URL on the left

[Mister7F]

I could be nice if we move the URL bar and the buttons on the left (or add an option for it), so we save even more vertical space

Like it's done here: https://github.com/sirlan-ff00ff/arcticfox-theme

I really like all the feature you implemented, but I miss that one to switch

[KiKaraage]

I actually explored the arcticfox theme back in April! But I ended up moving back to Edge afterwards haha.
Will revisit the theme (to see if FF updates break the theme again or not) and published it (as a fork to arcticfox, so separated from ArcWTF) once I'm free in September. (Also I had to re-maintain ArcWTF first!)

[Mister7F]

@KiKaraage wow, look amazing, I really enjoy your work, thanks