Edit taken date

It should be possible to edit the taken date. This is particularly important for videos. The taken date displayed in Nextcloud often does not correspond to reality. This leads to videos being displayed in the wrong order in Photos.

See also: https://github.com/nextcloud/viewer/issues/2739

![Image](https://github.com/user-attachments/assets/74f6a209-62ba-4c11-a97f-fcc3da3436ed)