Send change workflow

**Is your feature request related to a problem? Please describe.**
I'm always frustrated when I can not directly make things with my eyes closed. In this specific case I want to modify the code and send the change to upstream without looking at the screen.

The workflow.

1. Modify files in master branch of cloned repository (which I use)
2. Run `lazygit`

3. Commit changes to a new branch
4. Push branch to my fork
5. Open PR

Right now, the way to do this is 3n`new branch name`enterac`commit message`entershift+phomedeldeldeldeldeldel`git@github.com:abitrolly/myfork.git`enter

**Describe the solution you'd like**

n`new branch name`enterac`commit message`entershift+ptabenter

**Describe alternatives you've considered**

Haven't seen anything like that.

**Additional context**

This needs logic to detect `git@github.com:abitrolly/myfork.git` in Suggestions box.

See also https://github.com/jesseduffield/lazygit/issues/1508