Panel edit: Add feature to drag & drop spreadsheet files to the grafana datasource (#60586)

Co-authored-by: Oscar Kilhed <oscar.kilhed@grafana.com>
Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>
Co-authored-by: Adela Almasan <adela.almasan@grafana.com>

package.json

@@ -404,7 +404,8 @@
     "uuid": "9.0.0",
     "vendor": "link:./public/vendor",
     "visjs-network": "4.25.0",
-    "whatwg-fetch": "3.6.2"
+    "whatwg-fetch": "3.6.2",
+    "xlsx": "https://cdn.sheetjs.com/xlsx-0.19.1/xlsx-0.19.1.tgz"
   },
   "resolutions": {
     "underscore": "1.13.6",