Small fixes

App version 1.47.1 contains some corrections and improvements, mainly relating to the new way of displaying leaderboards introduced in 1.47.0:

• A fix for the wrong leaderboard sometimes being shown when switching between leaderboards.
• When a leaderboard is viewed on a narrow device, long player names can wrap over two lines if they need to.
• An attempted fix for preventing the Game Center access point from disappearing after the app has been in the background for a while.
• Improvements to animations and transitions.