Update git submodules
Update git submodules

* Update plugins/codemirror-editor from branch 'master'
  to 3af12c5a5e65861830b42bd07933e275c33b9159
  - Improve setting height of editor
    
    Side affect is if you have the developer console open
    the editor will be much smaller.
    
    But this is worth the trade off.
    
    Screenshot: https://imgur.com/a/OIwISAp
    Change-Id: I07d923ee5038db7e0b03dddb7ccd74b019c3bf64
    
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