CMakePM: Refactor "Initial Parameters" as a tab bar item

Now we have "Initial Configuration" and "Current Configuration"
as tab bar buttons.

This way the UI can be shared between the two configuration states.

Task-number: QTCREATORBUG-26869
Change-Id: I8206032a2a5ac076629865057816edb99706f2ff
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/libs/utils/aspects.cpp

@@ -204,7 +204,7 @@ void BaseAspect::setVisible(bool visible)
         // This may happen during layout building. Explicit setting visibility here
         // may create a show a toplevel widget for a moment until it is parented
         // to some non-shown widget.
-        if (visible && w->parentWidget())
+        if (w->parentWidget())
             w->setVisible(visible);
     }
 }