fix: main pad idx not swapping when controller disconnects

4J_Input/Windows64/INP_Main.h

@@ -157,6 +157,8 @@ public:
     FLOAT GetIdleSeconds(int iPad);
 
 	void HandleGamepadEvents();
+	void ShiftGamepadData(int destIndex, int srcIndex);
+	void ClearGamepadSlot(int index);
     bool UpdateJoypads(void);
     void ClearJoypadValues(JOYPAD *pThisPad);