fix(date formatting): Show study date as a fallback for an empty series date and show 'No Study Date' as a back up for both (#3483)

platform/i18n/src/locales/en-US/Common.json

@@ -6,6 +6,7 @@
   "Measurements": "Measurements",
   "More": "More",
   "Next": "Next",
+  "NoStudyDate": "No Study Date",
   "Play": "Play",
   "Previous": "Previous",
   "Reset": "Reset",