docs: OpenAPI setup

docs/sidebars.js

@@ -10,6 +10,7 @@
  */
 
 // @ts-check
+import apiSidebar from './docs/API-docs/sidebar.ts';
 
 /** @type {import('@docusaurus/plugin-content-docs').SidebarsConfig} */
 const sidebars = {
@@ -17,7 +18,7 @@ const sidebars = {
   tutorialSidebar: [{type: 'autogenerated', dirName: 'help'}],
   selfhostSidebar: [{type: 'autogenerated', dirName: 'self-host'}],
   contributeSidebar: [{type: 'autogenerated', dirName: 'contribute'}],
-  apiSidebar: [{type: 'autogenerated', dirName: 'API-docs'}],
+  apiSidebar: apiSidebar,
 
 
   // But you can create a sidebar manually