Refactor the individual window panel into a separate form

DD2Switcher/WindowPanelForm.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Diagnostics;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace DD2Switcher {
+    public partial class WindowPanelForm : UserControl {
+        public event EventHandler<int> PickClicked;
+        public event EventHandler<int> UntrackClicked;
+
+        public int WindowIndex { get; set; }
+        public Process WindowProcess { get; set; }
+        public bool IsFirst { get; set; }
+        public bool IsLast { get; set; }
+
+        public WindowPanelForm() {
+            InitializeComponent();
+        }
+
+        public void UpdateDisplay() {
+            if (WindowProcess != null) {
+                indexLabel.Text = $"Index: {WindowIndex}";
+                nameLabel.Text = $"Name: {WindowProcess.ProcessName}";
+                pidLabel.Text = $"PID: {WindowProcess.Id}";
+                titleLabel.Text = $"Title: {WindowProcess.MainWindowTitle}";
+                
+                if (IsFirst && IsLast) {
+                    firstLastLabel.Text = "First & Last";
+                } else if (IsFirst) {
+                    firstLastLabel.Text = "First";
+                } else if (IsLast) {
+                    firstLastLabel.Text = "Last";
+                } else {
+                    firstLastLabel.Text = "";
+                }
+            }
+        }
+
+        private void pickButton_Click(object sender, EventArgs e) {
+            PickClicked?.Invoke(this, WindowIndex);
+        }
+
+        private void untrackButton_Click(object sender, EventArgs e) {
+            UntrackClicked?.Invoke(this, WindowIndex);
+        }
+    }
+}