Add IsStringNullOrEmptyToVisibleConverter and bind ApplicationName to UI

Author: dualbios

src/FlaUInspect/Core/Converters/IsStringNullOrEmptyToVisibleConverter.cs

@@ -0,0 +1,19 @@
+using System.Windows.Data;
+
+namespace FlaUInspect.Core.Converters;
+
+public class IsStringNullOrEmptyToVisibleConverter : IValueConverter {
+    public bool IsInverted { get; set; }
+
+    public object Convert(object? value, Type targetType, object? parameter, System.Globalization.CultureInfo culture) {
+        var str = value as string;
+        bool condition = string.IsNullOrEmpty(str);
+        condition = IsInverted ? !condition : condition;
+
+        return condition ? System.Windows.Visibility.Collapsed : System.Windows.Visibility.Visible;
+    }
+
+    public object ConvertBack(object? value, Type targetType, object? parameter, System.Globalization.CultureInfo culture) {
+        throw new NotSupportedException();
+    }
+}