reworked lobby + social shares

[alee]

• new lobby integrated into player dashboard so participants can immediately start a game / create & manage colyseus rooms instead of based on a launch schedule from @sgfost Lobby rework #844
• add social share integration at the end of a game (twitter + fb) in 2ad6dfb from @sgfost
• improve new developer onboarding / linting / environment setup @sgfost @alee
• continuing to fix bugs in system health report related to colyseus schema handling

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This discussion was created from the release reworked lobby + social shares.