Reverse proxy amendments 2 (#616)

* Reverse Proxy Doc Amendments

- update custom domains page to more closely reflect wording in the UI, added screenshots
- add warning to index page that reverse proxy feature does not currently work with pre-shared keys/rosenpass

* Update navigation order (move reverse proxy below network routes)

* update migration guide to mention the need for TWO cname records (proxy and proxy wildcard)

src/components/NavigationDocs.jsx

@@ -156,16 +156,6 @@ export const docsNavigation = [
                     }
                 ]
             },
-            {
-                title: 'Reverse Proxy',
-                isOpen: false,
-                links: [
-                    { title: 'Overview', href: '/manage/reverse-proxy' },
-                    { title: 'Custom Domains', href: '/manage/reverse-proxy/custom-domains' },
-                    { title: 'Authentication', href: '/manage/reverse-proxy/authentication' },
-                    { title: 'Access Logs', href: '/manage/reverse-proxy/access-logs' },
-                ]
-            },
             {
                 title: 'Network Routes',
                 isOpen: false,
@@ -199,6 +189,16 @@ export const docsNavigation = [
                     }
                 ]
             },
+            {
+                title: 'Reverse Proxy',
+                isOpen: false,
+                links: [
+                    { title: 'Overview', href: '/manage/reverse-proxy' },
+                    { title: 'Custom Domains', href: '/manage/reverse-proxy/custom-domains' },
+                    { title: 'Authentication', href: '/manage/reverse-proxy/authentication' },
+                    { title: 'Access Logs', href: '/manage/reverse-proxy/access-logs' },
+                ]
+            },
             {
                 title: 'DNS',
                 isOpen: false,