add checks render game, rename component

[VladimirAfanasievFS]

#816

[codecov-io]

Codecov Report

Merging #864 into master will decrease coverage by 0.31%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #864      +/-   ##
==========================================
- Coverage   79.06%   78.75%   -0.32%     
==========================================
  Files          88       88              
  Lines        1605     1605              
==========================================
- Hits         1269     1264       -5     
- Misses        336      341       +5     

Impacted Files	Coverage Δ
services/app/lib/codebattle/chat/server.ex	67.85% <0.00%> (-21.43%)	⬇️
...es/app/lib/codebattle_web/channels/chat_channel.ex	80.00% <0.00%> (-16.67%)	⬇️
...es/app/lib/codebattle_web/channels/game_channel.ex	80.32% <0.00%> (-6.56%)	⬇️
services/app/lib/codebattle/bot/player_server.ex	68.18% <0.00%> (+3.03%)	⬆️
services/app/lib/codebattle/game_process/play.ex	93.15% <0.00%> (+4.10%)	⬆️
services/app/lib/codebattle/bot/chat_client.ex	9.09% <0.00%> (+9.09%)	⬆️
...es/app/lib/codebattle_web/views/tournament_view.ex	75.00% <0.00%> (+12.50%)	⬆️
services/app/lib/codebattle/tournament.ex	100.00% <0.00%> (+22.22%)	⬆️

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[ReDBrother]

Гайд имеет смысл показывать только для начавшейся игры (состояние playing), когда игрок впервые запускает батл. Нельзя показывать её не только для сохраненных игр (состояние stored), но так же и для просто завершенных (состояние game_over) и других пограничных состояний.