Added prices change short cut funtionalies

src/Pages/BookingScreen/Components/UtillComponents/ShortcutKeyHelper.jsx

@@ -15,6 +15,7 @@ const ShortcutKeyHelper = ({ }) => {
     { key: 'F4', description: 'Quick Pay' },
     { key: 'Alt + W', description: 'Hold and Recall' },
     { key: 'Ctrl + Q', description: 'Qty Change' },
+    { key: 'Alt + P', description: 'Change Total Amount' },
     { key: 'Ctrl + E', description: 'Price Change' },
     { key: 'Ctrl + I', description: 'Customer Rate History' },
   ];