Add Podman compose support and fix frontend production CSS

Former-commit-id: f197ec0f20

frontend/.dockerignore

@@ -1,11 +1,13 @@
-Dockerfile
-.dockerignore
-node_modules
-npm-debug.log
-README.md
 .next
 .git
 .env
 .env.local
 .env.*
 eslint.config.mjs
+node_modules
+npm-debug.log*
+build_logs*.txt
+build_output.txt
+build_error.txt
+errors.txt
+server_logs*.txt