Let users pick whatever font they want.

[davemackintosh]

I'm not convinced this limitation does any good or fixes any issues.

Should close #1579 #1483

[davemackintosh]

So, when I patched the font I wanted to use I forgot to specify the -s flag which is why I was seeing issues with alignment in #1901. The correct command to patch a font and keep correct column alignment and glyph width is

docker run --rm -v ~/Downloads/cozette:/in -v ~/Downloads/patched-fonts:/out nerdfonts/patcher --complete -s

However, even when it is specifically marked as mono it still does not appear in the font selector which means I'll leave this PR open.

[davemackintosh]

[davemackintosh]