Add keybindable commands to navigate between user messages (#5078)

Co-authored-by: Will@Cambridge <willcambridge@MacBook-Pro-59.local>
Co-authored-by: Will@Cambridge <willcambridge@macbookpro.mynetworksettings.com>

packages/sdk/js/src/gen/types.gen.ts

@@ -858,6 +858,14 @@ export type KeybindsConfig = {
    * Navigate to last message
    */
   messages_last?: string
+  /**
+   * Navigate to next message
+   */
+  messages_next?: string
+  /**
+   * Navigate to previous message
+   */
+  messages_previous?: string
   /**
    * Navigate to last user message
    */