This fixes #13673.
It now lists link sharing, passwords enforced, and if public uploads are
allowed.

Fix disabled files app

Fix DAV exceptions, some will still return false now

Add callCheck to testremote.php

Without CSRF check this file might be tricked into requesting itself which would result in an endless loop and thus potentially ending in a Denial of Service.

include core version into js/css version tag

encryption requires openssl and user_ldap requires ldap 

Default to `null` for lostpassword

Fix subadmin listing of group

fix trusted domain localization

We oC 8 we use the `StringUtils::equals` method which will also verify the type, since we don't anylonger hash the token twice this is required in case somebody is able to invoke this route with an empty `$token`.

make sure that we get the correct user from the path

Check whether return is an error case before using it

get correct user for paths to the trash bin, needed for remote shares if the size of of trash gets calculated

Without this patch filtering for the "_everyone" (empty) group did not work for subadmins.

Fixes itself.

Dont remove a file from cache if the delete operation failed

Since the Storage interface isn't ready to work directly with exceptions
like Forbidden and NotFound, the DAV storage has been adapted to still
return false when expected.

add CSS to exception page - fixes #13747

Close cursor after checking for existing config values