minor syntax

Runtime/PopupContentBuilder.cs

@@ -10,7 +10,7 @@ namespace Jovian.PopupSystem {
     /// or convenience methods for common types.
     /// </summary>
     public readonly struct PopupContentBuilder {
-        readonly PopupView view;
+        private readonly PopupView view;
 
         /// <summary>
         /// Creates a builder targeting the given popup view.
@@ -32,7 +32,7 @@ namespace Jovian.PopupSystem {
         /// </summary>
         public PopupContentBuilder AddText(string text, PopupElementType elementType) {
             var go = view.GetElement(elementType);
-            if(go == null) {
+            if(!go) {
                 return this;
             }
             var tmp = go.GetComponentInChildren<TMP_Text>();