Update deployment configuration files for optimized CI/CD pipeline

- Simplified `fly.toml` by removing inline comments.
- Refactored `.woodpecker.yml` pipeline syntax for better clarity and flexibility.
- Adjusted `Dockerfile` to fix `dist` directory path and streamline `CMD` execution.

fly.toml

@@ -1,5 +1,5 @@
 app = "gallus-pub"
-primary_region = "fra" # Frankfurt region, change if needed
+primary_region = "fra"
 kill_signal = "SIGINT"
 kill_timeout = 5