Run the integration tests on all platforms

[pentamassiv]

Finally we can run some tests in the CI. A lot of them are failing and the ones that work are a bit hacky, but it is a base we can improve upon :)

Main issues:

• For some reason the tests of the fast_text() function will fail a lot of the time, but sometimes it succeeds. I don't know if it is a timing issue or what the issue is here. The tests will eventually succeed after rerunning the workflow.
• For some reason all integration tests related to the mouse will fail on macOS.

I also added a bunch of tests to make sure the library does not panic. They should eventually be moved to the integration tests to also check if they have the desired effect

Fixes #141
Fixes #126