fix(web): escape quotes in sub_filter for fetch calls

Update the sub_filter pattern for fetch requests to include escaped
double quotes. This ensures that path rewriting correctly handles
JavaScript fetch calls that use double-quoted strings, preventing
broken resource paths in the telemetry dashboard.

apps/web/nginx.conf

@@ -72,12 +72,11 @@ server {
     proxy_read_timeout 35s;
 
     # Rewrite root-relative paths (<script src="/", href="/", fetch("/")) to /telemetry/ prefix
-    sub_filter_types text/html application/javascript;
     sub_filter_once off;
     sub_filter 'src="/' 'src="/telemetry/';
     sub_filter 'href="/' 'href="/telemetry/';
     sub_filter "url('/" "url('/telemetry/";
-    sub_filter 'fetch("/' 'fetch("/telemetry/');
+    sub_filter 'fetch("/' "fetch(\"/telemetry/";
   }
 
   location / {