Use different tab sizes depending on language

[letzabelin]

Взял за основу логику из hexlet-basics.

Учёл изменение языка из выпадающего списка в componentDidUpdate

closes #1081

[ReDBrother]

Ошибки линтера пофиксить и можно будет принять)

[codecov-commenter]

Codecov Report

Merging #1116 (9a650ac) into master (2e4cb0d) will increase coverage by 0.30%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1116      +/-   ##
==========================================
+ Coverage   70.01%   70.32%   +0.30%     
==========================================
  Files         125      125              
  Lines        2608     2608              
==========================================
+ Hits         1826     1834       +8     
+ Misses        782      774       -8     

Impacted Files	Coverage Δ
services/app/lib/codebattle/bot/player_server.ex	64.55% <0.00%> (+3.79%)	⬆️
...es/app/lib/codebattle_web/channels/game_channel.ex	85.00% <0.00%> (+6.25%)	⬆️

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