docs: updated deep link docs (#36952)

* removed open-url listener from windows code

* updated deep-link fiddle

* fixed url hash to app.requestSingleInstanceLock

* code linted

* updated website url to relative file path

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

docs/fiddles/system/protocol-handler/launch-app-from-URL-in-another-app/main.js

@@ -23,6 +23,8 @@ if (!gotTheLock) {
       if (mainWindow.isMinimized()) mainWindow.restore()
       mainWindow.focus()
     }
+    
+    dialog.showErrorBox('Welcome Back', `You arrived from: ${commandLine.pop().slice(0,-1)}`)
   })
 
   // Create mainWindow, load the rest of the app, etc...