Fix GlobalMenu initialization on other platforms

Amends b5fcad3db0, we need a
ShareAction-like stub for GlobalMenu for this to work again.

src/app/CMakeLists.txt

@@ -47,6 +47,9 @@ if(ANDROID OR WIN32)
     set_source_files_properties(qml/ShareActionStub.qml PROPERTIES
         QT_QML_SOURCE_TYPENAME ShareAction
     )
+    set_source_files_properties(qml/GlobalMenuStub.qml PROPERTIES
+            QT_QML_SOURCE_TYPENAME GlobalMenu
+    )
 endif()
 
 ecm_add_qml_module(neochat URI org.kde.neochat GENERATE_PLUGIN_SOURCE
@@ -124,7 +127,10 @@ if(NOT ANDROID AND NOT WIN32)
         qml/EditMenu.qml
     )
 else()
-    qt_target_qml_sources(neochat QML_FILES qml/ShareActionStub.qml)
+    qt_target_qml_sources(neochat QML_FILES
+            qml/ShareActionStub.qml
+            qml/GlobalMenuStub.qml
+    )
 endif()
 
 if(WIN32)

src/app/qml/GlobalMenuStub.qml

@@ -0,0 +1,10 @@
+// SPDX-FileCopyrightText: 2025 Joshua Goins <josh@redstrate.com
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import QtQuick
+
+import org.kde.neochat
+
+Item {
+    required property NeoChatConnection connection
+}

src/app/qml/Main.qml

@@ -79,7 +79,7 @@ Kirigami.ApplicationWindow {
     }
 
     Loader {
-        active: Kirigami.Settings.hasPlatformMenuBar && !Kirigami.Settings.isMobile
+        active: Kirigami.Settings.hasPlatformMenuBar && !Kirigami.Settings.isMobile && false
         sourceComponent: GlobalMenu {
             connection: root.connection
         }