feat: add support for sub routes under /my-account (#6218)

* feat: add support for sub routes under /my-account

closes #6217

* feat(plugins/client-routes): page titles

Add support for adding custom page titles in client routes.

* fix(client/PluginPages): reload component upon URL change

* Styling

* docs(plugins): update registerClientRoute

---------

Co-authored-by: Chocobozzz <me@florianbigard.com>

packages/models/src/plugins/client/plugin-client-scope.type.ts

@@ -8,4 +8,5 @@ export type PluginClientScope =
   'video-edit' |
   'admin-plugin' |
   'my-library' |
-  'video-channel'
+  'video-channel' |
+  'my-account'

packages/models/src/plugins/client/register-client-route.model.ts

@@ -1,6 +1,15 @@
 export interface RegisterClientRouteOptions {
   route: string
 
+  // Plugin route can be injected in a sub router, like the my-account page
+  parentRoute?: '/' | '/my-account'
+  // If parent route has a sub menu, specify the new entry sub menu settings
+  menuItem?: {
+    label?: string
+  }
+
+  title?: string
+
   onMount (options: {
     rootEl: HTMLElement
   }): void