add self-build for matrix_user_verification

Currently v3.0.0 tested with no issues.
So remove matrix_user_verification_service_docker_image from groups_vars.

/.npm must be writable or an error will be reported.

Update vectorim/element-web Docker tag to v1.11.48

Remove mention of the need for manual compilation of Element X for custom homeserver

Fix mention of two ways of setting up LinkedIn double puppeting, when there's only one

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2954

The new version supports v16.

Related to: https://github.com/devture/com.devture.ansible.role.postgres_backup/pull/3

Update synapse 1.95.0 -> 1.95.1

Update cinny 3.1.0 -> 3.2.0

It would work even without explicitly passing `jitsi_user_username` as
auto-detection logic will run. Passing it explicitly spares the Jitsi
role some work.

Related to:

- https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/pull/2
- https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2974#issuecomment-1784256903

Fix matrix-user-verification-service service file

Related to #2375, #2975, and #2847

Update ChatGPT Bot

Update ajbura/cinny Docker tag to v3.1.0

Update borgmatic 1.8.3 -> 1.8.4

fix jitsi auth (w/ auth; w/o auth), closes #2589

Update linuxserver/ddclient Docker tag to v3.11.1

Update nginx Docker tag to v1.25.3

Update grafana 10.1.5 -> 10.2.0

Add .gitattributes with checking out with lf line endings

Fixup for f49e3f1e02.

It appears that many servers are incredibly slow, so the value was
misreported and more are online than previously estimated.

Supersedes https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2961

Related to e87f5c11d7

Hopefully, this makes it clearer that it's not just "public rooms"
that will now be exposed,
but rather "public rooms which are also published to the room directory".

This brings the values up-to-date as of the latest indexing run done
today. Due to a bug, the previous values were somewhat off.
The new numbers are different and actually demonstrate that the situation is
much worse than initially imagined.

Update apache example for support discovery

Update ajbura/cinny Docker tag to v3

Update MSC1929 integration