This PR adds the "average lend time statistic" to the statistic model.
You can see the average lent time on the item page (see screenshot). The time is divided into different time units (days, hours, minutes, seconds), which are only shown if needed. The item page will not show the average lending time if an item has never been lent.
PR checklist
[x] dev-branch has been merged into local branch to resolve conflicts
[x] tests and linter have passed AFTER local merge
Fixes #143
This PR adds the "average lend time statistic" to the statistic model. You can see the average lent time on the item page (see screenshot). The time is divided into different time units (days, hours, minutes, seconds), which are only shown if needed. The item page will not show the average lending time if an item has never been lent.
PR checklist