Merge mozc with fcitx5

Since both are used at the same time, only importing one or the other
doesn't make sense.

desktop/default.nix

@@ -4,11 +4,10 @@
   imports = [
     ./dual-function-keys
     ./dunst
-    ./fcitx5
+    ./fcitx5-mozc
     ./fonts
     ./gtk
     ./hyprland
-    ./mozc
     ./nwg-dock
     ./pipewire
     ./rofi

desktop/fcitx5-mozc/default.nix

@@ -5,6 +5,18 @@
   i18n.inputMethod.fcitx5.addons = [ pkgs.fcitx5-mozc ];
 
   home-manager.sharedModules = [{
+    xdg.configFile."mozc/ibus_config.textproto".force = true;
+    xdg.configFile."mozc/ibus_config.textproto".text = ''
+      engines {
+        name : "mozc-jp"
+        longname : "Mozc"
+        layout : "default"
+        layout_variant : ""
+        layout_option : ""
+        rank : 80
+      }
+      active_on_launch: True
+    '';
     xdg.configFile."fcitx5/config".force = true;
     xdg.configFile."fcitx5/config".text = ''
       [Hotkey]

desktop/mozc/default.nix

@@ -1,16 +0,0 @@
-{
-  home-manager.sharedModules = [{
-    xdg.configFile."mozc/ibus_config.textproto".force = true;
-    xdg.configFile."mozc/ibus_config.textproto".text = ''
-      engines {
-        name : "mozc-jp"
-        longname : "Mozc"
-        layout : "default"
-        layout_variant : ""
-        layout_option : ""
-        rank : 80
-      }
-      active_on_launch: True
-    '';
-  }];
-}