fix(ui): prevent auto keyboard popup on player select

- Removed autoFocus from player input fields in new game creation
- Prevents on-screen keyboard from opening automatically on mobile

Refs #26

src/components/NewGame.jsx

@@ -94,7 +94,6 @@ const Player1Step = ({ playerNameHistory, onNext, onCancel, initialValue = '' })
             placeholder="Name Spieler 1"
             value={player1}
             onInput={e => setPlayer1(e.target.value)}
-            autoFocus
             autoComplete="off"
             aria-label="Name Spieler 1"
             style={{ fontSize: '1.2rem', minHeight: 48, marginTop: 12, marginBottom: 12, width: '100%', paddingRight: 44 }}
@@ -254,7 +253,6 @@ const Player2Step = ({ playerNameHistory, onNext, onCancel, initialValue = '' })
             placeholder="Name Spieler 2"
             value={player2}
             onInput={e => setPlayer2(e.target.value)}
-            autoFocus
             autoComplete="off"
             aria-label="Name Spieler 2"
             style={{ fontSize: '1.2rem', minHeight: 48, marginTop: 12, marginBottom: 12, width: '100%', paddingRight: 44 }}
@@ -391,7 +389,6 @@ const Player3Step = ({ playerNameHistory, onNext, onCancel, initialValue = '' })
             placeholder="Name Spieler 3 (optional)"
             value={player3}
             onInput={e => setPlayer3(e.target.value)}
-            autoFocus
             autoComplete="off"
             aria-label="Name Spieler 3"
             style={{ fontSize: '1.2rem', minHeight: 48, marginTop: 12, marginBottom: 12, width: '100%', paddingRight: 44 }}