[Feature] Default remote

[srn271]

We work with more than a handful of remotes due to forks.
When a new branch is created, the first remote defined for pushing changes is always preselected.
This is rarely the correct remote.

Let's say we have defined the following remotes:

• bar
• foo
• origin
• upstream

I would like to be able to push new (untracked) branches to origin by default.
Instead, bar is preselected, as this is the first remote alphabetically.

This feature could also improve the solution made for #469 (auto-selection).
Another GIT client (SourceTree) has this feature integrated, I would be happy if it were also possible here.

[love-linger]

Done. You can try the latest build from Github Actions

The new rule to auto select push targets is:

• If the current local branch is tracking with some remote branch, select it directly.
• If the current local branch has no upstream remote branch
  • If you have set the Default Remote in repository's configuration window, select the default remote, and the try to find a branch with same name or just create a new branch
  • If you never set the Default Remote, select the first remote and do the same job.

[srn271]

Works! Super! Great that it was implemented so quickly! (not even an hour 😅)

The support here is simply fabulous, keep it up!