GitLab

- Dont load plugins without short_name
- Check with the short_name if a plugin is already loaded

- Fix wrong chatstates issued because of textview changed signal
- Fix chatstates in PMs

and switch to yaml format to improve readability

- Dont install _() globally, although its elegant mypy cant deal with it
- If gettext cant find the translation itself, iter through all dirs and search for it

- Prepare for removing the global installed _() method in builtins
- Sort some imports along the way

- We only show it, if it changed

Fixes #9364

Fixes #9368

To easier simulate connectivity loss

* Move the pylint CI configuration to a separate script
* Update pylint in CI to 2.1.1
* Add pycurl to pylint whitelist