Add API_PUBLIC_URL environment variable for public API access

- Added API_PUBLIC_URL to deploy-config and manifest.yml
- Updated app config to load API_PUBLIC_URL from environment
- Used API_PUBLIC_URL in CSP configuration for connect-src

app/main/views/jobs.py

@@ -58,11 +58,11 @@ def view_job(service_id, job_id):
 
     filter_args = parse_filter_args(request.args)
     filter_args["status"] = set_status_filters(filter_args)
-    api_host_name = os.environ.get("API_HOST_NAME")
+    api_public_url = os.environ.get("API_PUBLIC_URL")
 
     return render_template(
         "views/jobs/job.html",
-        api_host_name=api_host_name,
+        api_public_url=api_public_url,
         FEATURE_SOCKET_ENABLED=current_app.config["FEATURE_SOCKET_ENABLED"],
         job=job,
         status=request.args.get("status", ""),