New updates!

Changelog (Infinitrivia v.1.4):

• New feature: Added updating text to the main menu that shows random topics that people have submitted.
• Quality of life: Added button to go back to the main menu during rounds
• Quality of life: Added button to mute audio during rounds
  
• Major bugfix: Fixed iOS bug where tapping on the topic input field would zoom the game in, and couldn't be un-zoomed.
• Updated score history UI to show total question count.
• Various bugfixes and visual changes.