feat(module:demo): implement course demo feature

[clementga]

Ajout du mode démo pour les cours

[codecov[bot]]

Codecov Report

Merging #22 (5024475) into main (0ba89be) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main      #22   +/-   ##
=======================================
  Coverage   89.13%   89.13%           
=======================================
  Files           2        2           
  Lines          46       46           
  Branches       11       11           
=======================================
  Hits           41       41           
  Misses          1        1           
  Partials        4        4           

Impacted Files	Coverage Δ
libs/feature/player/common/src/lib/player.model.ts	92.30% <100.00%> (ø)

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more

[Ofghanirre]

N'utilise pas de any, préfère des unknown ou sinon préfère le typage fort