BOM fix (hopefully)

fix: set default modlist colour to white

implement list colours

mod and button colour changing
keep track of steam updates for local copies of mods
add confirmation dialog when copying 5+ mods

(shift) page up/down selects (moves to) top/bottom element
add/remove individual mods to/from mod lists

copy settings when creating local copy

French language for ModManager (#10)

pixel perfect text, please.
refactor mod list button, add renaming
add reset all button
use question icon for notices