Newer Element Web versions allow for the nginx port to be
overriden, etc., and provide instructions for running in read-only mode.

This makes our custom `nginx.conf` patches unnecessary.

Passing the correct `ELEMENT_WEB_PORT` environment variable
also helps with future changes.

Another benefit of this (besides keeping closer to upstream
recommendations and the improved simplicity) is that:

- the container can run its entrypoint env-substitutions code now,
  without reporting errors

- IPv6 for nginx works, so `matrix-client-element:8080` is accessible
  via IPv6 on the container network now
  (this affects only for Traefik's communicaton with Element Web
  internally; public connectivity was handled by Traefik and IPv6 was
  available there even before)

Ref:

- 2052080d7d/docs/install.md (docker)
- https://github.com/element-hq/element-web/pull/28849
- https://github.com/element-hq/element-web/pull/28840

This reverts commit 178f7a9fff.

Element v1.11.95 doesn't seem to work. The container starts and is
unhealthy.

Until this is investigated and fixed, reverting.

Previously `https://example.com` and `https://example.com/` would be
redirected to `https://matrix.example.com`.

However, `https://example.com/?something` was not handled and was tried
to be served as a file by matrix-static-files for this base domain.

From now on, paths containing query strings will be handled as well
and the query string will be passed along.
Example: `https://example.com/?something` -> `https://matrix.example.com/?something`

* Update docs/configuring-playbook-ntfy.md: adopt the same description format as documentation for Jitsi and Etherpad

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-ntfy.md: introduction and other edits

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-ntfy.md: fix the link to the ansible-role-ntfy's documentation

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-ntfy.md: edit the list item

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-ntfy.md: the section for the web app

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-ntfy.md: re-add the note about subscribing to a notification topic

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs: links to MASH project and its components

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-ntfy.md

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Update docs/configuring-playbook-ntfy.md: create a section for the web app

- Remove the reasoning on why the web app is disabled by default as it is uncommon among the playbook's documentation
- Add the link to the official documentation about using the web app

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

---------

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
Co-authored-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
Co-authored-by: Slavi Pantaleev <slavi@devture.com>

Update dependency setuptools to v75.9.1

Update dependency setuptools to v75.9.0

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Update docs/configuring-playbook-email.md: copy from the ansible-role…

Follow-up to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3218

Based on eac4201a02/docs/configuring-exim-relay.md

- Add instruction to enable DKIM
- Replace the recommendation to use another SMTP server as relay, as DKIM has become available on exim-relay and configuring it greatly improves deliverability

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Enable room summary API (MSC3266) support for Synapse

Update dependency Jinja2 to v3.1.6

Bump jinja2 from 3.1.5 to 3.1.6 in /i18n

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.5 to 3.1.6.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/jinja/compare/3.1.5...3.1.6)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Since nginx 1.27.3, we can make use of the `resolve` parameter for an `upstream`'s `server`,
to allow DNS resolution to happen continuously at runtime, not just once during startup.

Previously, this was not possible to do in an `upstream` block without
an nginx-plus subscription. Outside of an `upstream` block, we've used
and still use `set $backend ..` workarounds to get DNS resolution at
runtime, but now we can do it in `upstream` as well.

Update docs/configuring-playbook-s3.md: add links to Storj and edit t…

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Add REUSE compliant badge on README.md

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Update docker.io/metio/matrix-alertmanager-receiver Docker tag to v2025.3.5

Update ajbura/cinny Docker tag to v4.5.1

Update validate_config.yml files

Add license information to the rest of the files to make the project REUSE compliant

Update docs/configuring-playbook.md: update the instruction to use git

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>