⚡️ perf: improve execution

usr/share/applications/snigdhaos-powershell.desktop

@@ -1,9 +1,12 @@
 [Desktop Entry]
 Type=Application
-Encoding=UTF-8
+Version=1.0
 Name=Snigdha OS PowerShell
-Comment=Snigdha OS PowerShell
+GenericName=PowerShell
+Comment=Run PowerShell in Snigdha OS
 Icon=snigdhaos-powershell
-Exec=exec-terminal 'pwsh'
-Terminal=false
-Categories=Tags;Describing;Application;Utility
+Exec=pwsh
+Terminal=true
+Categories=Utility;System;TerminalEmulator;
+Keywords=PowerShell;Shell;Terminal;CommandLine;SnigdhaOS;
+StartupNotify=true

usr/share/icons/hicolor/scalable/apps/snigdhaos-powershell.svg

@@ -0,0 +1 @@
+<svg id="Flat" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><rect fill="#2675e2" height="18" rx="2" width="20" x="2" y="3"/><g fill="#edebea"><path d="m6.26 16.49c-.19 0-.38-.07-.53-.22-.29-.29-.29-.77 0-1.06l3.21-3.21-3.21-3.21c-.29-.29-.29-.77 0-1.06s.77-.29 1.06 0l3.74 3.74c.29.29.29.77 0 1.06l-3.74 3.74c-.15.15-.34.22-.53.22z"/><path d="m18 16.49h-6c-.41 0-.75-.34-.75-.75s.34-.75.75-.75h6c.41 0 .75.34.75.75s-.34.75-.75.75z"/></g></svg>