Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2451

Check for empty string instead of Null to verify if an openid_server_name is pinned.

This is an advanced feature with dubious usefulness.
Putting it in the default config just confuses people.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2220

We keep the Makefile for now, but don't mention it to new
users anymore.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2227

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2386

Co-Authored-By: Slavi Pantaleev <slavi@devture.com>

* Allow the mautrix whatsapp relaybot to be enable with a variable

This allows a user to enable the relaybot by setting a variable in
`vars.yml` in the same way that the mautrix signal relaybot is
configured.

* Correct default values for mautrix whatsapp relaybot variables

* Add documentation for using the relaybot with mautrix whatsapp

* Adjust variable names to better reflect what they do

* Set default variables properly and use to_json in template

This extends the collection with support for seamless authentication at the Jitsi server using Matrix OpenID.

1. New role for installing the [Matrix User Verification Service](https://github.com/matrix-org/matrix-user-verification-service)
2. Changes to Jitsi role: Installing Jitsi Prosody Mods and configuring Jitsi Auth
3. Changes to Jitsi and nginx-proxy roles: Serving .well-known/element/jitsi from jitsi.DOMAIN
4. We updated the Jitsi documentation on authentication and added documentation for the user verification service.

This is a rebuild on Alpinelinux 3.17.0 (previously 3.16.2).
The new container image tag was pushed for arm32 and arm64 architectures
as well (2.13.6-r0 was `amd64`-only due to CI trouble in the past).

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2353

This warning was added because of:
https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2090

The problem has since been fixed by:
e9e84341a9

This current patch was provoked by:
https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2352

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2351

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2330

* Changes to allow a user to set the max participants on a jitsi
conference

* changed var name from jitsi_max_participants to matrix_prosody_jitsi_max_participants

* add prometheus-nginxlog-exporter role

* Rename matrix_prometheus_nginxlog_exporter_container_url to matrix_prometheus_nginxlog_exporter_container_hostname

* avoid referencing variables from other roles, handover info using group_vars/matrix_servers

* fix: stop service when uninstalling

fix: typo

move available arch's into a var

fix: text

* fix: prometheus enabled condition

Co-authored-by: ikkemaniac <ikkemaniac@localhost>

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2319

I'm not sure, but this should be changed to devture_postgres_... !?
https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/CHANGELOG.md#2022-11-28

```yaml
matrix_postgres_process_extra_arguments: [
  "-c 'max_connections=200'"
]
```

Reference: https://borgbackup.readthedocs.io/en/stable/usage/general.html#repository-urls

Otherwise, we'd get:

> /etc/borgmatic.d/config.yaml: Remote repository paths without ssh:// syntax are deprecated. Interpreting "user@hostname:matrix" as "ssh://user@hostname/./matrix"

This role is usable on its own and it's not tied to Matrix, so
extracting it out into an independent role that we install via
ansible-galaxy makes sense.

This also fixes the confusion from the other day, where
`matrix_postgres_*` had to be renamed to `devture_postgres_*`
(unless it was about `matrix_postgres_backup_*`).
We now can safely say that ALL `matrix_postgres_*` variables need to be
renamed.

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2305

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2256