EoL and codification

Signed-off-by: Suki <suki@missallsunday.com>
Template edits

Signed-off-by: Suki <suki@missallsunday.com>
Turn it into a class

Signed-off-by: Suki <suki@missallsunday.com>
Activity_Bar => ActivityBar

Signed-off-by: Suki <suki@missallsunday.com>