Fix/improve _sdl2 stubs

Author: ankith26

buildconfig/stubs/pygame/_sdl2/controller.pyi

@@ -23,9 +23,9 @@ class Controller:
     def as_joystick(self) -> JoystickType: ...
     def get_axis(self, axis: int) -> int: ...
     def get_button(self, button: int) -> bool: ...
-    def get_mapping(self) -> dict: ...
-    def set_mapping(self, mapping: dict) -> int: ...
-    def rumble(self, ___) -> bool: ...
-    def stop_rumble(
+    def get_mapping(self) -> dict[str, str]: ...
+    def set_mapping(self, mapping: dict[str, str]) -> int: ...
+    def rumble(
         self, low_frequency: float, high_frequency: float, duration: int
     ) -> bool: ...
+    def stop_rumble(self) -> None: ...

buildconfig/stubs/pygame/_sdl2/touch.pyi

@@ -1,6 +1,6 @@
 from typing import Union
 
 def get_num_devices() -> int: ...
-def get_device(index: int) -> int: ...
-def get_num_fingers(device_id: int) -> int: ...
+def get_device(index: int, /) -> int: ...
+def get_num_fingers(device_id: int, /) -> int: ...
 def get_finger(touchid: int, index: int) -> dict[str, Union[int, float]]: ...