Enhance/pdf improvements (#6475)

Full-text search, highlights and assets alias support 
It also exposes a plugin API for highlight context menu   
    ```ts
    /**
       * Current it's only available for pdf viewer
       * @param label - displayed name of command
       * @param action - callback for the clickable item
       * @param opts - clearSelection: clear highlight selection when callback invoked
       */
      registerHighlightContextMenuItem: (
        label: string,
        action: SimpleCommandCallback,
        opts?: {
          clearSelection: boolean
        }
      ) => unknown
    ```

resources/js/pdfjs/pdf.worker.js

@@ -74427,5 +74427,4 @@ const pdfjsBuild = 'eaaa8b4ad';
 /******/ 	return __webpack_exports__;
 /******/ })()
 ;
-});
-//# sourceMappingURL=pdf.worker.js.map
+});