Refactor FormatDuration method and add System.Collections.Generic…

… namespace

Added the `System.Collections.Generic` namespace to `AfkModule.cs` for better type safety and performance. Refactored the `FormatDuration` method to use a `List<string>` instead of an array for storing duration parts, improving code readability and maintainability. The method now checks and adds hours, minutes, and seconds separately to the list, ensuring the seconds part is added even if the duration is zero.

vrcosc-magicchatbox/Classes/Modules/AfkModule.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
@@ -273,16 +274,28 @@ private void ExitAfkMode()
 
         private static string FormatDuration(TimeSpan duration)
         {
-            var parts = new[]
+            var parts = new List<string>();
+
+            if (duration.TotalHours >= 1)
             {
-                duration.TotalHours >= 1 ? $"{duration.Hours}h" : null,
-                duration.Minutes > 0 ? $"{duration.Minutes}m" : null,
-                $"{duration.Seconds}s"
-            };
+                parts.Add($"{duration.Hours}h");
+            }
+
+            if (duration.Minutes > 0)
+            {
+                parts.Add($"{duration.Minutes}m");
+            }
 
-            return string.Join(" ", parts.Where(part => part != null));
+
+            if (duration.Seconds > 0 || (duration.Hours == 0 && duration.Minutes == 0))
+            {
+                parts.Add($"{duration.Seconds}s");
+            }
+
+            return string.Join(" ", parts);
         }
 
+
         private static uint GetIdleTime()
         {
             LASTINPUTINFO lastInputInfo = new LASTINPUTINFO { cbSize = (uint)Marshal.SizeOf(typeof(LASTINPUTINFO)) };