Create and save data to a Firestore databaseUse Firebase SDK with Firestore to create a project appUnderstand how data in Firestore is organised in collections and documentsExplain how a mockup image of the UI is usedJustify the use of timestamps, text fields and 'like' starsSummarise the performance of the app's segmented controlDescribe the role of Firebase cocoapodsExplain how to retrieve data using observers and one-time fetches