rearrange DE modules

modules/gnome/system.nix

@@ -80,6 +80,31 @@ in
       };
     };
 
+    # Input method configuration for GNOME
+    i18n.inputMethod = {
+      enable = true;
+      type = "ibus";
+      ibus.engines = with pkgs.ibus-engines; [
+        libpinyin  # Chinese Simplified Pinyin
+        mozc       # Japanese (Romaji)
+      ];
+    };
+
+    # GNOME dconf settings
+    programs.dconf.profiles.user.databases = [{
+      settings = {
+        "org/gnome/settings-daemon/plugins/power" = {
+          sleep-inactive-ac-type = "nothing";
+        };
+        "org/gnome/desktop/a11y/applications" = {
+          screen-keyboard-enabled = true;
+        };
+        "org/gnome/desktop/peripherals/mouse" = {
+          accel-profile = "flat";
+        };
+      };
+    }];
+
     # System packages for GNOME
     environment.systemPackages = with pkgs; [
       hicolor-icon-theme  # Fallback icon theme