QmlDesigner: Use different changelog path for QDS

* Do not deploy Qt Creator changelog for Qt Design Studio
* Set minimum size on combo box

Change-Id: Ic069c76b5a02963972ec199553ce9e27c820f75a
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

CMakeLists.txt

@@ -170,7 +170,9 @@ endif()
 
 add_subdirectory(src)
 add_subdirectory(share)
-add_subdirectory(dist)
+if (NOT BUILD_DESIGNSTUDIO)
+    add_subdirectory(dist)
+endif()
 
 if (WITH_TESTS)
   add_subdirectory(tests)

src/plugins/coreplugin/icore.cpp

@@ -2578,6 +2578,7 @@ void ICorePrivate::changeLog()
     });
 
     auto versionCombo = new QComboBox;
+    versionCombo->setMinimumWidth(80);
     for (const VersionFilePair &f : versionedFiles)
         versionCombo->addItem(f.first.toString());
     dialog = new LogDialog(ICore::dialogParent());