change content view header based on input day

Shared/views/AddMoodHeaderView.swift

@@ -20,7 +20,7 @@ struct AddMoodHeaderView: View {
             Color(UIColor.systemBackground)
             
             VStack {
-                Text("How is today?")
+                Text(self.getTitle())
                     .font(.title)
                     .foregroundColor(Color(UIColor.label))
                     .padding()
@@ -49,6 +49,16 @@ struct AddMoodHeaderView: View {
         .padding()
     }
     
+    private func getTitle() -> String {
+        switch savedOnboardingData.inputDay {
+            
+        case .Today:
+            return "How is today?"
+        case .Previous:
+            return "How was yesterday?"
+        }
+    }
+    
     private func addItem(withMood mood: Mood) {
         switch savedOnboardingData.inputDay {
         case .Today: