Integrate match engine response

[madhukar01]

• Phase 0 of new match engine response.
• Add score metrics on the game page
• Set default theme to light
• Fixes #22 and #18

[madhukar01]

• The new match engine runs based on the skill rating difference between 2 players.
• The base probabilities is scaled according to the difference.
• Minor tweaks will be added in the coming weeks.
• The updates are a pathway to fixing #25 and #20