feat: (Nextcloud) Default parameters

To have a correctly configured Nextcloud, some best practices are to be set.

• opcache settings upgraded

• /var/www/nextcloud/config/config.php tuned

…
  'default_phone_region' => 'FR',
  'trashbin_retention_obligation' => 'auto, 31',
  'versions_retention_obligation' => 'auto, 31',
  'minimum.supported.desktop.version' => '3.6.2',
  'default_language' => 'fr',
  'loglevel' => 2,
  'logtimezone' => 'Europe/Paris',
  'log_rotate_size' => '5242880',
);

• Default apps (occ app:install …)
  • Calendar
  • Community Document Server
  • Configurable Share Links
  • Contacts
  • Deck
  • Draw.io
  • Group folders (… not very sure…)
  • Impersonate
  • Mail
  • Mind Map
  • ONLYOFFICE
  • Passwords
  • Polls
  • Quota warning
  • Tasks

added enhancement label

changed the description