Changes based on feedback from playtest with Tom

[BabarKhanDev]

• Offer to show tutorial when joining a game #3
• Game key isn't centered #4
• Join codes are case sensitive, they shouldn't be #5
• Consider text harvesting time length #6
• Reformat UX for assigning players to introduction #7
• Celebrations currently shown on every results screen, should only be on final #8
• The clock is too wide on third harvesting stage #9
• Prompt submitted third time is not showing the correct colours #10
• At the start of the game we should properly introcuce users to the goal #11
• Simplify Tutorial #12