[fix] Build deps and flower version

Fixes taken from the repo issues to enable building the frontend and the last known compatible flower version

frontend/nginx.conf

@@ -0,0 +1,11 @@
+server {
+  listen 80;
+  
+  location / {
+    root /usr/share/nginx/html;
+    index index.html index.htm;
+    try_files $uri $uri/ /index.html =404;
+  }
+  
+  include /etc/nginx/extra-conf.d/*.conf;
+}