Add comments for string truncation

Flow.Launcher.Plugin/SharedCommands/ShellCommand.cs

@@ -62,6 +62,7 @@ namespace Flow.Launcher.Plugin.SharedCommands
                     return string.Empty;
                 }
 
+                // Truncate the buffer to the actual length of the string
                 int validLength = Array.IndexOf(buffer, '\0');
                 if (validLength < 0) validLength = capacity;
                 return new string(buffer, 0, validLength);

Flow.Launcher/Helper/WindowsInteropHelper.cs

@@ -61,6 +61,8 @@ public class WindowsInteropHelper
         fixed (char* pBuffer = buffer)
         {
             PInvoke.GetClassName(hWnd, pBuffer, capacity);
+
+            // Truncate the buffer to the actual length of the string
             int validLength = Array.IndexOf(buffer, '\0');
             if (validLength < 0) validLength = capacity;
             windowClass = new string(buffer, 0, validLength);

Plugins/Flow.Launcher.Plugin.ProcessKiller/ProcessHelper.cs

@@ -106,6 +106,7 @@ namespace Flow.Launcher.Plugin.ProcessKiller
                         return string.Empty;
                     }
 
+                    // Truncate the buffer to the actual length of the string
                     int validLength = Array.IndexOf(buffer, '\0');
                     if (validLength < 0) validLength = (int)capacity;
                     return new string(buffer, 0, validLength);

Plugins/Flow.Launcher.Plugin.Program/Programs/ShellLinkHelper.cs

@@ -38,6 +38,8 @@ namespace Flow.Launcher.Plugin.Program.Programs
             fixed (char* bufferChar = buffer)
             {
                 ((IShellLinkW)link).GetPath((PWSTR)bufferChar, MAX_PATH, &data, (uint)SLGP_FLAGS.SLGP_SHORTPATH);
+
+                // Truncate the buffer to the actual length of the string
                 int validLength = Array.IndexOf(buffer, '\0');
                 if (validLength < 0) validLength = MAX_PATH;
                 target = new string(buffer, 0, validLength);