.gitignore: Whitelist for .config

By default don't include anything from ~/.config, unless there is an
exception.

.gitignore

@@ -2,16 +2,7 @@
 .bash*
 .cache
 .cargo
-.config/.gsd-keyboard.settings-ported
-.config/BetterDiscord
-.config/GIMP
-.config/Gaijin
-.config/Kvantum
-.config/Mailspring
-.config/Nextcloud
-.config/Thunar/accels.scm
-.config/WarThunder
-.config/mpv/watch_later
+.config/*
 .dmrc
 .electron-gyp
 .gitconfig
@@ -49,4 +40,26 @@ Pictures
 Scripts
 Videos
 go
+
+!.config/GIMP/2.10/palettes
+!.config/Thunar
+.config/Thunar/accels.scm
+!.config/foot
+!.config/gtk-3.0
+.config/gtk-3.0/bookmarks
+!.config/gtk-4.0
+.config/gtk-4.0/bookmarks
+!.config/hypr
+!.config/mpv
+.config/mpv/watch_later
+!.config/neofetch
+!.config/qt5ct/colors
+!.config/qt6ct/colors
+!.config/swayidle
+!.config/swaylock
+!.config/waybar
+!.config/wofi
+!.config/xfce4
+.config/xfce4/xfconf/
+!.config/xsettingsd
 !.local/share/dotfiles