move the nextcloud log file to /var/log

[OniriCorpe]

Problem

• people absolutely wants to edit the fail2ban config because they moved their data_dir elsewhere see: https://github.com/YunoHost/doc/pull/2415 https://github.com/YunoHost/doc/pull/2416

Solution

• move the log file to /var/log, where it belongs, so no need to change that damn fail2ban file at all 😓

PR Status

• [x] Code finished and ready to be reviewed/tested
• [ ] The fix/enhancement were manually tested (if applicable)

Automatic tests

Automatic tests can be triggered on https://ci-apps-dev.yunohost.org/ after creating the PR, by commenting "!testme", "!gogogadgetoci" or "By the power of systemd, I invoke The Great App CI to test this Pull Request!". (N.B. : for this to work you need to be a member of the Yunohost-Apps organization)

[yunohost-bot]

:sunflower:

[ericgaspar]

shall we also remove logs ynh_secure_remove --file="/var/log/$app" in remove script?

[OniriCorpe]

shall we also remove logs ynh_secure_remove --file="/var/log/$app" in remove script?

yeah why not

[yunohost-bot]

:rocket:

[niko2]

This will also help for logrotate that needs to be updated when data_dir is changed

[OniriCorpe]

that's the whole point 😅😅😅😅😅