Don't recreate games container every switch

[Sheikah45]

Closes #2954

[codecov]

Codecov Report

Merging #2962 (b90efc1) into develop (b86f5c8) will increase coverage by 0.01%.
The diff coverage is 77.27%.

❗ Current head b90efc1 differs from pull request most recent head bf59420. Consider uploading reports for the commit bf59420 to get more accurate results

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #2962      +/-   ##
=============================================
+ Coverage      64.72%   64.73%   +0.01%     
- Complexity      4880     4882       +2     
=============================================
  Files            554      555       +1     
  Lines          20217    20204      -13     
  Branches        1081     1080       -1     
=============================================
- Hits           13085    13080       -5     
+ Misses          6501     6493       -8     
  Partials         631      631              

Impacted Files	Coverage Δ
...com/faforever/client/fx/ToStringOnlyConverter.java	0.00% <0.00%> (ø)
...om/faforever/client/game/GameDetailController.java	90.29% <50.00%> (+0.51%)	⬆️
...m/faforever/client/game/CustomGamesController.java	60.41% <93.75%> (+1.92%)	⬆️
...ver/client/game/GamesTilesContainerController.java	68.00% <100.00%> (+1.98%)	⬆️

... and 1 file with indirect coverage changes

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