feat(input): binding START per jugador (teclat 1/2 fix, mando remapejable; pausa només per F11)

source/utils/defaults.hpp

@@ -79,6 +79,7 @@ namespace Defaults {
         constexpr SDL_Scancode RIGHT = SDL_SCANCODE_RIGHT;
         constexpr SDL_Scancode JUMP = SDL_SCANCODE_M;
         constexpr SDL_Scancode ATTACK = SDL_SCANCODE_N;
+        constexpr SDL_Scancode START = SDL_SCANCODE_1;
         constexpr SDL_Scancode EXIT = SDL_SCANCODE_ESCAPE;
     }  // namespace KeysGame
 
@@ -93,6 +94,7 @@ namespace Defaults {
         constexpr SDL_Scancode RIGHT = SDL_SCANCODE_D;
         constexpr SDL_Scancode JUMP = SDL_SCANCODE_V;
         constexpr SDL_Scancode ATTACK = SDL_SCANCODE_C;
+        constexpr SDL_Scancode START = SDL_SCANCODE_2;
     }  // namespace KeysGameP2
 
     namespace Player {