change some niri config, add setup script for nobara on PC

modules/hosts/kitagawa/kitagawa.nix

@@ -40,6 +40,7 @@
             enable = true;
             spicetify.enable = true;
           };
+          thunderbird.enable = true;
         };
 
         cli = {
@@ -48,7 +49,6 @@
         };
 
         extraPackages = with pkgs; [
-          github-desktop
           moonlight-qt
         ];
       };
@@ -99,15 +99,9 @@
     features = {
       applications = {
         extraPackages = with pkgs; [
-          obsidian
-          thunderbird
           jetbrains.clion
           jetbrains.idea
-          proton-vpn
-          ente-auth
-          signal-desktop
           xarchiver
-          kdePackages.filelight
           kdePackages.kate
           loupe
           sshfs