git.commit-push flow

As a developer, I rarely want to commit all the files (some files are local config, some files I added something for dev purposes, etc.). My suggestion is, letting the user select the files they want to commit.
I had in mind something similar to the selection menu we show the user in `cocmd install`

It can list all of the changed files (I think there's a file in the .git directory that keeps track of changed files), and lets you select the ones you wanna commit.
I personally use `git add -p` that shows the changes in blocks of code, but I couldn't think of a non-complex way of doing that, so this is my compromise.

Requires addition [Here](https://cocmd.org/docs/packages/from_hub/git)