Text cleanup

This MR goes over text and cleans it up to be more unifying. Mostly just lowercasing words in non-titles, but it also changes the "show fancy effects" text to be clearer with its meaning.  
It also fixes the room access being printed in the room settings:  ![image](/uploads/864606de81f0f603ebb85dbe7c745491/image.png)  
I'd like to do a second pass later with another MR to unify triple dots (...) and ellipsis (…)