QmlDesigner: Disable MCU unsupported workspace and views

This patch disable unsupported 3D workspace and some views
from view menu and toolbar combobox

Task-number: QDS-10336
Change-Id: Ic97baead8029a93ae95707b9349f81f02adb6335
Reviewed-by: Henning Gründl <henning.gruendl@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Yasser Grimes <yasser.grimes@qt.io>
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>

src/plugins/qmlprojectmanager/qmlproject.cpp

@@ -238,4 +238,17 @@ bool QmlProject::allowOnlySingleProject()
     return !settings->value(key, false).toBool();
 }
 
+bool QmlProject::isMCUs()
+{
+    if (!ProjectExplorer::ProjectManager::startupTarget())
+        return false;
+
+    const QmlProjectManager::QmlBuildSystem *buildSystem
+        = qobject_cast<QmlProjectManager::QmlBuildSystem *>(
+            ProjectExplorer::ProjectManager::startupTarget()->buildSystem());
+    QTC_ASSERT(buildSystem, return false);
+
+    return buildSystem && buildSystem->qtForMCUs();
+}
+
 } // namespace QmlProjectManager

src/plugins/qmlprojectmanager/qmlproject.h

@@ -24,6 +24,8 @@ public:
 
     ProjectExplorer::Tasks projectIssues(const ProjectExplorer::Kit *k) const final;
 
+    static bool isMCUs();
+
 protected:
     RestoreResult fromMap(const Utils::Store &map, QString *errorMessage) override;