fixing typo in i18n strings

Changing "Cannot Flag Message": "Cannot Flat Message" to "Cannot Flag Message": "Cannot Flag Message"

Author: AndersDLund

package/src/i18n/en.json

@@ -6,7 +6,7 @@
   "Are you sure you want to permanently delete this message?": "Are you sure you want to permanently delete this message?",
   "Block User": "Block User",
   "Cancel": "Cancel",
-  "Cannot Flag Message": "Cannot Flat Message",
+  "Cannot Flag Message": "Cannot Flag Message",
   "Copy Message": "Copy Message",
   "Delete": "Delete",
   "Delete Message": "Delete Message",