Smaller send button and blue (#2035)

Classes/Views/MessageView+Styles.swift

@@ -17,7 +17,7 @@ extension MessageViewController {
         messageView.textView.placeholderText = NSLocalizedString("Leave a comment", comment: "")
         messageView.textView.placeholderTextColor = Styles.Colors.Gray.light.color
         messageView.setButton(icon: UIImage(named: "send")?.withRenderingMode(.alwaysTemplate), for: .normal, position: .right)
-        messageView.rightButtonTint = Styles.Colors.Green.medium.color
+        messageView.rightButtonTint = Styles.Colors.Blue.medium.color
         messageView.font = Styles.Text.body.preferredFont
         messageView.textViewInset = UIEdgeInsets(
             top: Styles.Sizes.rowSpacing*1.5,