This is preparation for enabling an eslint indentation configuration.
90% of these changes are just fixes for indentation errors that have
snuck into the codebase over the years; the others are more
significant reformatting to make eslint happy (that are not otherwise
actually improvements).
The one area that we do not attempt to work on here is the
"switch/case" indentation.
This appends a space when text is inserted at the end of a message
using `compose_ui.insert_syntax_and_focus`. This is definitely what
users expect when using this feature.
Fixes: #8569.
This fixes compose.test_video_link_compose_clicked to just
use a stub for compose_ui.insert_syntax_and_focus.
It also adds direct tests for compose_ui.insert_syntax_and_focus.
Fixes#6362
Shubham Dhama
Tim Abbott
Tommy Ip
Steve Howell
Mahim Goyal