Fix empty musiclist due to incorrect loading order

[Salanto]

• Fixes empty-songlist due to incorrect loading order in the MusicManager

[codecov-commenter]

Codecov Report

Merging #320 (021aefb) into master (d684314) will not change coverage. The diff coverage is 50.00%.

@@           Coverage Diff           @@
##           master     #320   +/-   ##
=======================================
  Coverage   10.29%   10.29%           
=======================================
  Files          56       56           
  Lines        4673     4673           
=======================================
  Hits          481      481           
  Misses       4192     4192           

Impacted Files	Coverage Δ
core/src/server.cpp	0.00% <0.00%> (ø)
core/src/music_manager.cpp	83.63% <100.00%> (ø)

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