Make typing indocator anchor on the left

This anchors the typing indicator to the left instead of to the right, bringing it closer to what other chat clients use.
Since the eyes usually start on the left (as that's where the messages start) I figured that having the chat indicator there is more convenient too.

Note: Not sure if it's because of the PR, or if I have an issue with dependencies, but most elements now started to display a non-scrollable horizontal bar