Update commit list + Usability messages + UX + Error in windows 11

v4.0.stable.official [92bee43ad]
Debian 11
Debian 10

I think there is a problem in commit list.

I have two computer with the same project. When I commit from one (I checked with web if the commit was done) I can't see that commit in the other computer , no matter what I do.
This issue is a no go to for me. I will use vscode in the meantime :)

can you add some usability messages in these actions?:
- pull completed/errors
- push completed/errors
- require password to connect
- password saved
- files difference between local and remote

Also some improvements in UX

- If I add my password I would like to keep the password field filled. It means I no need to set it again.
- When i choose to show in "Unified" view I would like to keep that setting when I reopen godot editor.
- When I switch off the plugin from project->version control->version control settings the plugin have to be closed the next time I open my project.

======= Windows 11 section :

When I try to commit I have this error

`
core/variant/variant_utility.cpp:894 - GitPlugin: Could not get default signature. Error -3: config value 'user.name' was not found in godot-git-plugin\src\git_plugin.cpp:GitPlugin::_commit#L103
`
While In Project->VersioneControl->Version Control Settings I have all set (user and password)
Thanks

Beginne bei git_plugin.cpp:GitPlugin::_commit#L103 und reproduziere den fehlenden user.name-Fehler unter Windows 11. Trenne anschließend das Problem mit der Commit-Liste, die Usability-Meldungen und die UX-Anfragen in einzelne zu untersuchende Verhaltensweisen auf. Als abgeschlossen gilt die Arbeit, wenn der Umfang abgestimmt, reproduzierbare Tests vorhanden und alle ausgewählten Änderungen verifiziert sind.

Vom Indexierungsmodell aus dem Issue-Text verfasst.