editor/pybricksMicroPython: add Side to hub template

This is included in pybricks.parameters on all hubs.

src/explorer/sagas.test.ts

@@ -294,7 +294,7 @@ describe('handleExplorerCreateNewFile', () => {
             {
               "contents": "from pybricks.hubs import TechnicHub
             from pybricks.pupdevices import Motor
-            from pybricks.parameters import Button, Color, Direction, Port, Stop
+            from pybricks.parameters import Button, Color, Direction, Port, Side, Stop
             from pybricks.robotics import DriveBase
             from pybricks.tools import wait, StopWatch