In this task the menu entries regarding "Record Movie" should get synced up:

• In the Qt version there is a menu entry "Record Movie". Please add a "Stop recording" entry below which is grayed out by default.
• when not recording only the "Record Movie" should look enabled, the Stop one should be grayed out
• when recording the "Record Movie" entry should be grayed out and the "Stop recording" should be enabled
• The "Start/Stop" toggle in the dialog should be removed.
• Test the whole functionality and try to find bugs: Try to create several movies, "Overwrite" an existing movie with a new one, etc..