owncloud

Describe the bug
Sometimes shared photos are one-boxed when they should be embedded. See this discussion on the forum for why Nextcloud photos are not displayed properly.

This is because of a missing og:type meta tag. Currently it is set to object. If it was set to image onebox would treat it as such.

Steps to reproduce

1. Press-hold a file-list item till it hovers, then drop ==> multi-action icons on the bottom stay forever
2. Press-hold a file-list item till it hovers, move/drag a few pixels, then drop ==> multi-action icons on the bottom go away

Hello,
i got two enhancement ideas:

1. Add a option to enable automatic deletetion of values and a dropdown to select the timespan.
   example: you only want to store two years of data. Activate this option and chose 2 years. Data older than the selection will be deleted.

2. Add an option to select different displayed date formats. Sending the date in the date('Y-m-d H:i:s') format is ok. Bu

Mobile resolution OcBreadcrumb could use some love, it currently is unreadable in the collapsed state