Merge pull request #1372 from noesya/events-categories

.../admin/communication/websites/agenda/events_controller.rb

...rs/admin/communication/websites/application_controller.rb

...trollers/admin/communication/websites/posts_controller.rb

app/models/communication/website/agenda/event.rb

app/models/communication/website/category.rb

...admin/communication/websites/agenda/events/_form.html.erb

...admin/communication/websites/agenda/events/_list.html.erb

...admin/communication/websites/agenda/events/index.html.erb

.../admin/communication/websites/agenda/events/show.html.erb

...munication/websites/agenda/events/show/_metadata.html.erb

...dmin/communication/websites/agenda/events/static.html.erb

.../admin/communication/websites/categories/_inline.html.erb

...s/admin/communication/websites/categories/_panel.html.erb

.../communication/websites/categories/_static_about.html.erb

app/views/admin/communication/websites/posts/_list.html.erb

app/views/admin/communication/websites/posts/index.html.erb

app/views/admin/communication/websites/posts/static.html.erb

config/locales/communication/en.yml

config/locales/communication/fr.yml

db/migrate/20231031102713_join_categories_to_events.rb