Common: Utils: init data url to file

packages/common/utils/dataUrlToFile.js

@@ -0,0 +1,9 @@
+export function dataUrlToFile(url, filename, mimeType) {
+  return fetch(url)
+    .then(function (res) {
+      return res.arrayBuffer();
+    })
+    .then(function (buf) {
+      return new File([buf], filename, { type: mimeType });
+    });
+}