refactor: remove deprecated YAML template files

- Deleted all 'template.yml' files from various blueprints as part of the transition to TOML format.
- Updated the script to delete the 'template.yml' files instead of converting them to 'template.toml'.

blueprints/docmost/template.yml

@@ -1,19 +0,0 @@
-variables:
-  main_domain: ${domain}
-  postgres_password: ${password}
-  app_secret: ${password}
-
-config:
-  domains:
-    - serviceName: docmost
-      port: 3000
-      host: ${main_domain}
-
-  env:
-    - POSTGRES_DB=docmost
-    - POSTGRES_USER=docmost
-    - POSTGRES_PASSWORD=${postgres_password}
-    - APP_URL=http://${main_domain}:3000
-    - APP_SECRET=${app_secret}
-
-  mounts: []