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/homarr/template.yml

@@ -1,14 +0,0 @@
-variables:
-  main_domain: ${domain}
-  secret_key: ${password:64}
-
-config:
-  domains:
-    - serviceName: homarr
-      port: 7575
-      host: ${main_domain}
-
-  env:
-    - SECRET_ENCRYPTION_KEY=${secret_key}
-
-  mounts: []