Patch: Always expand notifications

This patch expands the notifications preview by default for long notifications.

The overview list is unchanged.

Note: this patch has been requested by user “remote” in the SailfishOS forum but I don't use it myself. That means it will be low priority when maintaining my patches.

Sources: https://github.com/ichthyosaurus/sailfish-public-patch-sources

Discussion: https://forum.sailfishos.org/t/patches-by-ichthyosaurus

Donations: https://liberapay.com/ichthyosaurus