Relates #1758 and #1898 and #1901

Keep line breaks when message has some new lines

* Keep line breaks when message has some new lines

Relates #1758 and #1898 and #1901

* fix link preview cropped when received

* make sure we fetch from seed if we end up with not enough snodes

* try to download recent previews if we just trusted a user

* throw if we need to rebuild path while fetching snode list from snode

* fixup no refecthing of snode list while we are fetching them already

* added test for fetch from db or seed

* fetch snode list from snode every hour

also make sure the path building does not try to get more snodes. It
just throws

* do not drop a path if an opengroup room is down and we get errors  back

* do not throw an error if the snode in error in not in any path

* fix tests

* bump to v1.7.11