moved rest api lower (#18758)

Author: daisyfaithauma

src/content/docs/ai-gateway/api-reference.mdx

@@ -3,6 +3,5 @@ pcx_content_type: navigation
 title: REST API reference
 external_link: /api/resources/ai_gateway/methods/list/
 sidebar:
-  order: 8
-
+  order: 19
 ---

src/content/docs/ai-gateway/demos.mdx

@@ -4,7 +4,7 @@ title: Architectures
 sidebar:
   group:
     hideIndex: true
-    order: 10
+    order: 16
 ---
 
 import { GlossaryTooltip, ResourcesBySelector } from "~/components";

src/content/docs/ai-gateway/glossary.mdx

@@ -1,6 +1,8 @@
 ---
 title: Header Glossary
 pcx_content_type: glossary
+sidebar:
+  order: 15
 ---
 
 import { Glossary } from "~/components";