refactor(ansible): normalize include_role syntax and unify host config paths via path_join

- Remove stray spaces after include_role: across many roles to ensure clean YAML and
  consistent linting/formatting.
- Listmonk:
  - Introduce LISTMONK_CONFIG_HOST = [ docker_compose.directories.config, 'config.toml' ] | path_join
  - Use that var in the template task (dest) and the docker-compose volume mount
- Matrix:
  - Build MATRIX_SYNAPSE_CONFIG_PATH_HOST, MATRIX_SYNAPSE_LOG_PATH_HOST, and
    MATRIX_ELEMENT_CONFIG_PATH_HOST via path_join
- Mobilizon:
  - Build mobilizon_host_conf_exs_file via path_join
  - Keep get_app_conf strictness unchanged (defaults to True in our filter), so behavior
    remains strict even though the explicit third arg was dropped
- Simpleicons:
  - Build server.js and package.json host paths via path_join
- Numerous web-app roles (Confluence, Discourse, EspoCRM, Friendica, Funkwhale, Gitea,
  GitLab, Jenkins, Joomla, Listmonk, Mailu, Mastodon, Matomo, Matrix, MediaWiki,
  Mobilizon, Moodle, Nextcloud, OpenProject, Peertube, Pixelfed, Pretix, Roulette Wheel,
  Snipe-IT, Syncope, Taiga, WordPress, XWiki, Yourls) and web-svc roles (coturn,
  libretranslate, simpleicons) updated for consistent include_role formatting

Why:
- path_join avoids double slashes and missing separators across different config roots
- Consistent include_role: formatting improves readability and prevents linter noise

Ref:
- Conversation: https://chatgpt.com/share/68d14711-727c-800f-b454-7dc4c3c1f4cb

roles/web-app-matrix/vars/main.yml

@@ -28,9 +28,9 @@ MATRIX_SYNAPSE_NAME:                  "{{ applications | get_app_conf(applicatio
 MATRIX_SYNAPSE_VOLUME:                "{{ applications | get_app_conf(application_id, 'docker.volumes.synapse') }}"
 MATRIX_SYNAPSE_DOMAIN:                "{{ domains[application_id].synapse }}"
 MATRIX_SYNAPSE_PORT:                  "{{ ports.localhost.http['web-app-matrix_synapse'] }}"
-MATRIX_SYNAPSE_CONFIG_PATH_HOST:      "{{ docker_compose.directories.config }}homeserver.yaml"   
+MATRIX_SYNAPSE_CONFIG_PATH_HOST:      "{{ [ docker_compose.directories.config, 'homeserver.yaml' ] | path_join }}"
 MATRIX_SYNAPSE_CONFIG_PATH_CONTAINER: "/data/homeserver.yaml"
-MATRIX_SYNAPSE_LOG_PATH_HOST:         "{{ docker_compose.directories.config }}{{ MATRIX_SYNAPSE_DOMAIN }}.log.config"    
+MATRIX_SYNAPSE_LOG_PATH_HOST:         "{{ [ docker_compose.directories.config, MATRIX_SYNAPSE_DOMAIN ~'.log.config' ] | path_join }}"
 MATRIX_SYNAPSE_LOG_PATH_CONTAINER:    "/data/{{ MATRIX_SYNAPSE_DOMAIN }}.log.config"
 MATRIX_SYNAPSE_URL:                   "{{ WEB_PROTOCOL }}://{{ MATRIX_SYNAPSE_DOMAIN }}"
 
@@ -40,4 +40,4 @@ MATRIX_ELEMENT_IMAGE:                 "{{ applications | get_app_conf(applicatio
 MATRIX_ELEMENT_NAME:                  "{{ applications | get_app_conf(application_id, 'docker.services.element.name') }}"
 MATRIX_ELEMENT_DOMAIN:                "{{ domains[application_id].element }}"
 MATRIX_ELEMENT_PORT:                  "{{ ports.localhost.http['web-app-matrix_element'] }}"
-MATRIX_ELEMENT_CONFIG_PATH_HOST:      "{{ docker_compose.directories.config }}element-config.json"
+MATRIX_ELEMENT_CONFIG_PATH_HOST:      "{{ [ docker_compose.directories.config, 'element-config.json' ] | path_join }}"