feat(view): change Activity Bar icon to zap

Better represents "Quick Command" speed concept and distinguishes from default terminal icon

Author: KubrickCode

package.json

@@ -69,7 +69,7 @@
         {
           "id": "quickCommandsContainer",
           "title": "Quick Commands",
-          "icon": "$(terminal)"
+          "icon": "$(zap)"
         }
       ]
     },