update strings

update empty views
take out headers on customize views
make refresh on sample row go through moods great->horrible
other small UI changes

Shared/Models/Mood.swift

@@ -17,6 +17,15 @@ enum Mood: Int {
     case missing
     case placeholder
     
+    var next: Mood {
+        var moodValue = self.rawValue
+        moodValue -= 1
+        if moodValue < 0 {
+            moodValue = 4
+        }
+        return Mood.init(rawValue: moodValue) ?? Mood.horrible
+    }
+    
     var strValue: String {
         switch self {
         case .horrible: