chore: wording

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Lash-L

roborock/devices/traits/b01/q10/vacuum.py

@@ -8,7 +8,7 @@
 class VacuumTrait:
     """Trait for sending vacuum commands.
 
-    This is wrapper around the CommandTrait for sending vacuum related
+    This is a wrapper around the CommandTrait for sending vacuum related
     commands to Q10 devices.
     """