Replace fontawesome icons for osu! client settings

[peppy]

Currently we are using font awesome icons for the settings sections, but these don't quite explain the sections well enough.

[CenTdemeern1]

I tried making an icon for "User interface", let me know what you think, if it needs any changes, and if I should make more.
(Icon is of course based on the main menu with the settings menu open)

[CenTdemeern1]

I can't seem to make this look any better without making it straight up look like a washing machine.
I'll probably try again some other time.

[Tanza3D]

I honestly don't see an issue with most the font awesome ones, just a few, so here's my take on them:

[peppy]

I think where possible, we want to move away from them (where it makes sense) just because they are uninspiring these days due to widespread usage.

[Tanza3D]

it may be worth looking into a different icon pack to use then, and replace it client-wide?

[peppy]

I believe @arflyte may have already been experimenting with another icon set, but I've heard nothing back yet.