fix(players): store active game in player model

[garrappachc]

Instead of having it dynamic, store player's active game directly in player model.

[codecov]

Codecov Report

Merging #1099 (9162e13) into master (81d1d19) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1099      +/-   ##
==========================================
+ Coverage   94.22%   94.25%   +0.02%     
==========================================
  Files         166      166              
  Lines        3378     3392      +14     
  Branches      320      341      +21     
==========================================
+ Hits         3183     3197      +14     
  Misses        188      188              
  Partials        7        7              

Impacted Files	Coverage Δ
src/games/models/game-slot.ts	100.00% <100.00%> (ø)
src/games/services/game-event-handler.service.ts	91.17% <100.00%> (+0.40%)	⬆️
src/games/services/games.service.ts	74.48% <100.00%> (+0.80%)	⬆️
src/games/services/player-substitution.service.ts	97.47% <100.00%> (+0.02%)	⬆️
src/players/models/player.ts	100.00% <100.00%> (ø)
src/players/services/players.service.ts	98.03% <100.00%> (+0.10%)	⬆️
src/profile/controllers/profile.controller.ts	100.00% <100.00%> (ø)

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