Add initial XWiki role draft

- Added web-app-xwiki draft role with config, vars, templates, and docs
- Registered new network and port for XWiki
- Adjusted MediaWiki canonical domain to media.wiki

https://chatgpt.com/share/68c18c65-a008-800f-8d62-b695df2c6fa1

roles/web-app-xwiki/templates/docker-compose.yml.j2

@@ -0,0 +1,23 @@
+{% include 'roles/docker-compose/templates/base.yml.j2' %}
+  application:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: "{{ XWIKI_IMAGE_CUSTOM }}"
+    container_name: "{{ XWIKI_CONTAINER }}"
+    hostname: '{{ XWIKI_HOSTNAME}}'
+    command: ["all"]
+    ports:
+      - "127.0.0.1:{{ ports.localhost.http[application_id] }}:{{ container_port }}"
+    volumes:
+      - 'data:/usr/local/xwiki'
+{% include 'roles/docker-container/templates/healthcheck/curl.yml.j2' %}
+{% include 'roles/docker-container/templates/base.yml.j2' %}
+{% include 'roles/docker-container/templates/depends_on/dmbs_excl.yml.j2' %}
+{% include 'roles/docker-container/templates/networks.yml.j2' %}
+
+{% include 'roles/docker-compose/templates/volumes.yml.j2' %}
+  data:
+    name: {{ XWIKI_DATA_VOLUME }}
+
+{% include 'roles/docker-compose/templates/networks.yml.j2' %}