[stable27] fix(files): Set download property and encode source

[Pytal]

• Fix part of buggy behavior when clicking on a file in trashbin, server version dependent groupfolders#2680

Summary

• Fix download on trashbin files originally in a groupfolder

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[Pytal]

Download will trigger but the files will be 0 bytes as the URL is incorrect due to groupfolder trash being located in <data_dir>/__groupfolders/trash/

Not sure if downloading from groupfolders trash was possible before @icewind1991? If we want to allow downloads like normal files then this will need adjustments

[blizzz]

Still results in a network error for me, and the download url did not really change: https://my.nc.srv/remote.php/dav/trashbin/$UID/trash/$FILENAME.$EXT.d1675427849

[Pytal]

Still results in a network error for me, and the download url did not really change: https://my.nc.srv/remote.php/dav/trashbin/$UID/trash/$FILENAME.$EXT.d1675427849

Tried after compile?
URL not changed in this PR, only the download property is set which should trigger the 0 byte download

Will need to know from @icewind1991 how groupfolder trash downloads worked before

[blizzz]

Still results in a network error for me, and the download url did not really change: https://my.nc.srv/remote.php/dav/trashbin/$UID/trash/$FILENAME.$EXT.d1675427849

Tried after compile? URL not changed in this PR, only the download property is set which should trigger the 0 byte download

… and hard reload, yes. Even twice for good measure ;)

[Pytal]

Superseded by nextcloud/groupfolders#2716