🖌️ Goodbye Stylix

- Added theming to Btop
- Added theming to Nvim and removed bufferline plugin
- Added mode to theme.nix to change from light theme to dark theme
- Replaced Starship theme with Catppuccin starship theme
- Added QT platformtheme ENV
- Moved wallpapers into wallpaper dir
- Replaced image of desktop1 with more up to date one

home-manager/default.nix

@@ -12,6 +12,7 @@ in
   imports = [
     inputs.catppuccin.homeManagerModules.catppuccin
     inputs.nixvim.homeManagerModules.nixvim
+    ./btop.nix
     ./cava.nix
     ./default-applications.nix
     ./development