fix: serve frontend assets without spa fallback

frontend/angular.json

@@ -21,6 +21,11 @@
               {
                 "glob": "**/*",
                 "input": "public"
+              },
+              {
+                "glob": "**/*",
+                "input": "src/assets",
+                "output": "assets"
               }
             ],
             "styles": [

infra/docker/frontend/nginx.conf

@@ -5,6 +5,10 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    location /assets/ {
+        try_files $uri =404;
+    }
+
     location / {
         try_files $uri $uri/ /index.html;
     }