To improve the structure of the documentation, the "Miscellaneous"
section should be limited as much as possible.
This commit:
- renames "Calendars" into "Calendar" (as the app name)
- moves the app from the "Miscellaneous" section to the "Productivity"
section
- fixes the wrong file structure to follow the toc
(e.g. general/calendars/outlook/outlook_calendar -> productivity/calendar/outlook)
task-3217827
closesodoo/documentation#4123
Signed-off-by: Castillo Jonathan (jcs) <jcs@odoo.com>