feat(title): add support for small title (#19215)

Updates title to include `small` size and updates searchbar and UI to match native.

closes #18898

core/src/components/segment/segment.tsx

@@ -58,6 +58,7 @@ export class Segment implements ComponentInterface {
 
   /**
    * Emitted when the styles change.
+   * @internal
    */
   @Event() ionStyle!: EventEmitter<StyleEventDetail>;