gitea: set default theme to 'gitea'

profiles/gitea.nix

@@ -36,7 +36,7 @@
         IS_INPUT_FILE = false;
       };
       ui = {
-        DEFAULT_THEME = "arc-green";             # Set the default theme
+        DEFAULT_THEME = "gitea";             # Set the default theme
       };
     };
   };