Fix warnings during build

[Perdu]

This might fix some crashes

[Perdu]

I left this one because I guess this function is used for debugging:

../../../src/library/xlib/xevents.cpp:677:13: warning: 'void libtas::debugEvent(XEvent*)' defined but not used [-Wunused-function]
  677 | static void debugEvent(XEvent *event)
      |             ^~~~~~~~~~

and I'm not exactly sure what to do with this one (that appears because of the move to more recent versions of C++):

../../../src/library/inputs/sdlgamecontroller.cpp:372:44: warning: arithmetic between different enumeration types 'SDL_GameControllerButton' and 'SingleInput::<unnamed enum>' is deprecated [-Wdeprecated-enum-enum-conversion]
  372 |         b.value.hat.hat_mask = bindH[button-SingleInput::BUTTON_DPAD_UP];
      |                                      ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~