[graphics][desktop] Configure Hyprland for ultrawide monitors

[LukeShortCloud]

By default, Hyprland assumes the use of 2 columns (and 2 rows). This is ideal for 16:9 monitors. For 21:9 ultrawide monitors, 3 columns is ideal.

master {
    always_center_master = true
    orientation = center
    mfact = 0.34
}

https://www.reddit.com/r/hyprland/comments/1gcgpna/ultrawide_3column_layout_in_hyprland/

Super-ultrawide monitors have a 32:9 aspect ratio where 5 columns are ideal.

master {
    always_center_master = true
    orientation = center
    mfact = 0.20
}

https://www.reddit.com/r/ultrawidemasterrace/comments/ls6o1j/super_ultra_wide_5120x1440_329_window_management/