feature: build overrides (#2212)

* add build overrides

* override docs

* add server submodule

* add overrides to build step

* remove testing api url

Co-Authored-By: Quahu <quahuu@gmail.com>

Co-authored-by: Quahu <quahuu@gmail.com>

docs/faq/toc.yml

@@ -22,3 +22,5 @@
       topicUid: FAQ.TextCommands.General
 - name: Legacy or Upgrade
   topicUid: FAQ.Legacy
+- name: Build Overrides
+  topicUid: FAQ.BuildOverrides.WhatAreThey