Frontend: Reduce API Proxy Cache time

Signed-off-by: Fred Boniface <fred@fjla.uk>

static/conf/nginx.conf

@@ -39,7 +39,7 @@ http {
             proxy_pass http://localhost:8460;
             proxy_cache_key $scheme://$host$uri$is_args$query_string;
             proxy_ignore_headers Cache-Control;
-            proxy_cache_valid 200 20m;  # Change to 1m for release.
+            proxy_cache_valid 200 2m;  # Evaluate whether 2m or 1m is more appropriate
             gzip on;
             brotli on;
         }