feat: update default theme to Yaru-dark and set Nemo as the default file manager

config/home-manager/workstation/dconf.nix

@@ -9,7 +9,7 @@
     };
 
     theme = {
-      name = "Yaru";
+      name = "Yaru-dark";
     };
 
     cursorTheme = {
@@ -57,14 +57,14 @@
       "org/gnome/shell" = {
         favorite-apps = [
           "zen.desktop"
-          "org.gnome.Nautilus.desktop"
+          "nemo.desktop"
           "com.spotify.Client.desktop"
-          "FFPWA-01JPMJ4K0S7JZDT2469CKNY49H.desktop"
-          "telegram-desktop_telegram-desktop.desktop"
+          "signal-desktop.desktop"
           "whatsapp-desktop-client_whatsapp-desktop-client.desktop"
-          "vesktop.desktop"
+          "telegram-desktop_telegram-desktop.desktop"
           "code.desktop"
-          "org.gnome.Ptyxis.desktop"
+          "vesktop.desktop"
+          "scrcpy.desktop"
         ];
       };