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

data/locale/ca.yaml

@@ -76,6 +76,7 @@ menu:
     move_right: "Dreta"
     jump: "Saltar"
     attack: "Atacar"
+    start: "Start"
     service: "Opcions"
     gamepad_p1: "Comandament P1"
     gamepad_p2: "Comandament P2"

data/locale/en.yaml

@@ -75,6 +75,7 @@ menu:
     move_right: "Right"
     jump: "Jump"
     attack: "Attack"
+    start: "Start"
     service: "Options"
     gamepad_p1: "Gamepad P1"
     gamepad_p2: "Gamepad P2"