More consistent navigation by keeping pagination settings alive between page visits

[markkorput]

Is your feature request related to a problem? Please describe.
Tasks navigation is inconsistent; page number, number of entries per page, selected sorting options and search terms get reset after opening a task and then navigating back (using the browser's back button, because flower does not provide a link back to the index).

Describe the solution you'd like
It would help if the browser's location href is updated whenever any of the pagination/filtering/ordering options change. This not only provides more sensible navigation but also allows users to share links to tasks pages with specific pagination settings.

[lf-novelt]

yes please, it's very difficult to troubleshoot a lot of tasks failure when > 15, as it gets back to page 1 and does not persist the search filter
it should not be hard to add a URL query parameter with the current filters / page

[lf-novelt]

hello @mher
would you accept such a PR?