Fix Window Positioning with Multiple Montiors

Flow.Launcher.Infrastructure/UserSettings/Point2D.cs

@@ -0,0 +1,46 @@
+using System;
+
+namespace Flow.Launcher.Infrastructure.UserSettings;
+
+public record struct Point2D(double X, double Y)
+{
+    public static implicit operator Point2D((double X, double Y) point)
+    {
+        return new Point2D(point.X, point.Y);
+    }
+
+    public static Point2D operator +(Point2D point1, Point2D point2)
+    {
+        return new Point2D(point1.X + point2.X, point1.Y + point2.Y);
+    }
+
+    public static Point2D operator -(Point2D point1, Point2D point2)
+    {
+        return new Point2D(point1.X - point2.X, point1.Y - point2.Y);
+    }
+
+    public static Point2D operator *(Point2D point, double scalar)
+    {
+        return new Point2D(point.X * scalar, point.Y * scalar);
+    }
+
+    public static Point2D operator /(Point2D point, double scalar)
+    {
+        return new Point2D(point.X / scalar, point.Y / scalar);
+    }
+
+    public static Point2D operator /(Point2D point1, Point2D point2)
+    {
+        return new Point2D(point1.X / point2.X, point1.Y / point2.Y);
+    }
+
+    public static Point2D operator *(Point2D point1, Point2D point2)
+    {
+        return new Point2D(point1.X * point2.X, point1.Y * point2.Y);
+    }
+
+    public Point2D Clamp(Point2D min, Point2D max)
+    {
+        return new Point2D(Math.Clamp(X, min.X, max.X), Math.Clamp(Y, min.Y, max.Y));
+    }
+}

Flow.Launcher.Infrastructure/UserSettings/Settings.cs

@@ -205,8 +205,10 @@ public SearchPrecisionScore QuerySearchPrecision
 
         public bool AutoUpdates { get; set; } = false;
 
-        public double WindowLeft { get; set; }
-        public double WindowTop { get; set; }
+
+        public Point2D WindowPosition { get; set; }
+        public Point2D PreviousScreen { get; set; }
+        public Point2D PreviousDpi { get; set; }
 
         /// <summary>
         /// Custom left position on selected monitor