Add fe-root to FEM staging redirects (#343)

nginx-fem-staging-redirects.conf

@@ -1,7 +1,9 @@
 set $fe_project_uri "https://fe-project.preview.zooniverse.org";
 set $fe_content_pages_uri "https://fe-content-pages.preview.zooniverse.org";
+set $fe-root_uri "https://fe-root.preview.zooniverse.org";
 set $fe_project_host "fe-project.preview.zooniverse.org";
 set $fe_content_pages_host "fe-content-pages.preview.zooniverse.org";
+set $fe-root_host "fe-root.preview.zooniverse.org";
 
 # Project app data and static files
 location ~* ^/projects/(?:_next|assets)/.+?$ {
@@ -21,6 +23,15 @@ location ~* ^/about/(?:_next|assets)/.+?$ {
     include /etc/nginx/proxy-security-headers.conf;
 }
 
+# Root app data and static files
+location ~* ^/(?:_next|assets)/.+?$ {
+    resolver 1.1.1.1;
+    proxy_pass $fe-root_uri;
+    proxy_set_header Host $fe-root_host;
+
+    include /etc/nginx/proxy-security-headers.conf;
+}
+
 # Zooniverse About pages
 location ~* ^/about/(?:team|publications)/?$ {
     resolver 1.1.1.1;
@@ -65,3 +76,21 @@ location ~* ^/projects/(?:[\w-]*?/)?[\w-]*/[\w-]+/(?:(classify|about)(?:/.+?)?)?
 
     include /etc/nginx/proxy-security-headers.conf;
 }
+
+# FEM Root app routes for users pages (optional trailing slash)
+location ~* ^/users/[\w-]+/?$ {
+    resolver 1.1.1.1;
+    proxy_pass $fe-root_uri;
+    proxy_set_header Host $fe-root_host;
+
+    include /etc/nginx/proxy-security-headers.conf;
+}
+
+# FEM Root app routes for user groups pages (optional trailing slash)
+location ~* ^/groups/[\w-]+/?$ {
+    resolver 1.1.1.1;
+    proxy_pass $fe-root_uri;
+    proxy_set_header Host $fe-root_host;
+
+    include /etc/nginx/proxy-security-headers.conf;
+}