migrate: nvim config to lua; picom jonahburg to yshui

i3: config: add binding for gnome screenshot

fixup: TN display gradient whitish tint fix

polybar: refined bar UI and refactor redshift to work properly without geoclue

i3: fixup nvidia and use picom fork and config of jonaburg

alacritty: dropped yaml and adopt toml

ncmpcpp: refactor to gruvbox theme

nvim: add bracey and carbon plugins

polybar: font family: FiraCode --> Lunasima

i3: config: vanilla config --> picom-ftlabs-git

i3: Switch to nautilus for file manager

readme: update info on installation of YouCompleteMe nvim plugin

config: glava: import initial glava changes for gruvbox

config: mpv: add gruvbox mpv configs

config: i3: add screenoff script and bind it to shortcuts