Create wise-toys-care.md

Author: yuchenshi

.changeset/wise-toys-care.md

@@ -0,0 +1,12 @@
+---
+"@firebase/database-types": feature
+"@firebase/database": feature
+"firebase": feature
+"@firebase/firestore-types": feature
+"@firebase/firestore": feature
+"@firebase/storage-types": feature
+"@firebase/storage": feature
+"@firebase/util": feature
+---
+
+Implement mockUserToken for Storage and fix JWT format bugs.