backend: fix resize usage

oops i forgot to update this

Author: NovaSagittarii

backend/src/acine/scheduler/managed_runtime.py

@@ -24,7 +24,8 @@ async def init(self):
         self.ih = InputHandler(
             routine.launch_config.window_name, cmd=routine.launch_config.start_command
         )
-        await self.ih.resize(routine.launch_config.width, routine.launch_config.height)
+        pos = routine.launch_config.initial_position
+        await self.ih.resize(pos.width, pos.height)  # TODO: self.ih takes a Position?
         self.gc = GameCapture(await self.ih.win.title)
         self.controller = BuiltinController(self.gc, self.ih)
         self.rt = Runtime(