Mastodon Collaborative - Don't require restart after cloning a shared project

[maarzt]

User story

After cloning a shared project, the BDV XML/HDF5 will often be in a wrong location, and the user will need to fix the respective path. This requires the user to find the correct menu and restart Mastodon.

Solution

1. Mastodon already shows a dialog that allows the user to open dummy image data or to cancel. This dialog should could offer a third option to fix the image path.
2. Another solution would be to offer to restart mastodon after showing the already existing fix image path dialog.
3. It would be great if we could add the newly cloned project to the list of recently opened projects.