PROJ-151: Corrected "comission scolaire" mistakes
PROJ-151: Fixed unoffsetted <i> tags in page titles
PROJ-151: Fixed time formats in editions admin page
PROJ-151: Updated school types for better readiness
PROJ-151: Fixed a couple of stylings issues

- New datatables styling, with fixed width and text-overflow ellipsis
- New left menu styling
- Added buttons icons in planification page
Merge branch 'develop' of https://github.com/Inovitex/fcms into develop