Add disableInitialGUM to recorder options

[saghul]

Sort them alphabetically, while I'm at it.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.00%. Comparing base (081b935) to head (4c0f87f).

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #541      +/-   ##
============================================
+ Coverage     47.98%   48.00%   +0.02%     
  Complexity      174      174              
============================================
  Files            73       73              
  Lines          2130     2131       +1     
  Branches        205      205              
============================================
+ Hits           1022     1023       +1     
  Misses         1040     1040              
  Partials         68       68              

Files	Coverage Δ
...n/kotlin/org/jitsi/jibri/selenium/JibriSelenium.kt	21.38% <100.00%> (+0.49%)	⬆️

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