Release recent bugfixes in 1.8.5

Release translation fix & updates

Release drawing improvements and update translations

Release python 3.8 fix

Update contributor list from POEditor

Replace deprecated logo with logo_url in sphinx template

It was our template all along and not rtd-theme

Handle monitors that have no manufacturer/model names

As in GH actions CI.

Handle monitors that have no manufacturer/model names

As in GH actions CI.

Implement duration on movie

Fix #272 rows calculation for single-row layouts

If page and widget aspect ratios are such that a single row is the
optimal layout considering floor/ceil of max(1, rows) can cause wrong
results as we are really looking at ceil(rows) and ceil(rows) + 1.

1.8 rc1