[Feature Request] Singleton Mode Setting

[srn271]

It would be nice if you could configure in the global settings whether SourceGit should be started as a singleton or multi-instance.

I work with several virtual desktops and would like to use a different workspace for each desktop.

Before the switch to singleton mode, this was possible without any problems.

Portable mode is not really a solution for me, as each instance would have to be configured separately and I don't want to install and maintain (update) SourceGit multiple times.

[love-linger]

At present, there are some difficult-to-solve technical problems regarding the implementation scheme of multiple running instances, including but not limited to:

• Reading and writing of user configuration files (Preferences), and how to synchronize the changes made by one instance to other instances after it is changed.
• Whether it is allowed to open the same repository in different instances. If so, there are also problems of reading, writing and synchronization of repository configurations among multiple instances.
• How to handle the requirement of opening a repository in a new tab using the command line under the condition of multiple instances.