f9705b3323 reworked the configuration and missed wiring
these to the existing variables.

Related to:
- https://github.com/mautrix/gmessages/releases/tag/v0.5.0
- https://mau.fi/blog/2024-09-mautrix-release/

It seems like the new version does not support a `/metrics` endpoint.
We skip keep the Ansible variables, but they're not doing anything.

Most of these files were defining a service, usually toward the end.
These lines have been moved upward.

Some components (mautrix-signal, mautrix-gmessages, etc.) were defining
a service conditionally (only if metrics are exposed, etc). This was
causing issues like these in the Traefik logs:

> level=error msg="service \"matrix-mautrix-twitter\" error: port is missing" providerName=docker container=matrix-mautrix-twitter-..

This moves the comments from being just in Jinja,
to actually ending up in the generated `labels` file,
which makes inspection of the final result easier.

Also, some new lines were added here and there to make labels
more legible.

The generated file may still include weird new-lines due to
various `if` statements yielding content or not, but that's not so ugly
anymore - now that we have proper start/end sections that are visible in
the final `labels` file.

This is an attempt at optimizing service startup.

The effect is most pronounced when many services are restarted one by one.
The systemd service manager role sometimes does this - for example when `just install-service synapse` runs.
In such cases, a 5-second delay for each Synapse worker service
(or other bridge/bot service that waits on the homeserver) quickly adds up to a lot.

When services are all stopped fully and then started, the effect is not so pronounced, because
`matrix-synapse.service` starts first and pulls all worker services (defined as `Wants=` for it).
Later on, when the systemd service manager role "starts" these worker services, they're started already.
Even if they had a 5-second wait each, it would have happened in parallel.

* intial commit

* changed

* Reorderd

* merge old changes

* added changes to matrix_servers

* Remove duplicate discord

* Update main.yml

* added google message to configuring-playbook.md

* Changed docs to add new changes

* Changed bug?

* Removed problem j2 values

* Rename a service files

* change how password hash string

* Changed port number

* Change how the local part works

* Revert "Merge pull request #8 from shreyasajj/wsproxy"

This reverts commit bb1b8fc67ca39f63ca77e70077be99cb2b32c4de, reversing
changes made to cce6ba5f9d.

---------

Co-authored-by: Shreyas Ajjarapu <github.tzarina@aleeas.com>