Conventional Commit Popup

[tkr-sh]

It changes the following:

• Add a new "Conventional Commit" popup, with a feature "gitmoji" that allows quick templating messages with rich git commit messages following conventional commits.

I followed the checklist:

• I added unittests (I don't think that there are unittests on popup usually)
• I ran make check without errors
• I tested the overall application
• I added an appropriate item to the changelog

Also, I know that the UI and the UX is different than the one of Fuzzy finder, but I prefer this one personally (I think that the UX is just better tbh), and it's still easy to follow, even for non vim users :) !