Fixes a problem where the game could stay on a black screen at launch instead of
reaching the character menu.
- The opening film now starts on its own, with sound. No tap needed.
- Added a loading screen with the logo and a progress bar, so the first screen is
never blank.
- Tap during the intro to skip straight to the character select.
- The game now always reaches the menu, even if a video or asset fails to load.
- Fixed a bug that could leave a video frozen on black on slower devices.