Adding support files

xfce4/panel/launcher-7/powershell.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Name=PowerShell
+Comment=PowerShell is an automation and configuration management platform
+Encoding=UTF-8
+Exec=pwsh
+Icon=kali-pwsh
+StartupNotify=false
+Terminal=true
+Type=Application
+Categories=System;Utility;
+X-Kali-Package=powershell
+X-XFCE-Source=file:///usr/share/applications/kali-pwsh.desktop