Merge branch 'feature-bonus-sounds' into 'V3.7'

Sounds bonus difficulty seek bar

See merge request !754
2 jobs from V3.7 in 24 minutes and 54 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #198276
dev_debug

00:23:23

 
  Unit Test
passed #198277
unitTest

00:01:30