Show only nightly button on installer-help, show dev edition for aurora (Fixes #8579)
Show only nightly button on installer-help, show dev edition for aurora (Fixes #8579)

ericawright/bedrock,mozilla/bedrock,craigcook/bedrock,mozilla/bedrock,craigcook/bedrock,flodolo/bedrock,mozilla/bedrock,alexgibson/bedrock,flodolo/bedrock,ericawright/bedrock,alexgibson/bedrock,mozilla/bedrock,hoosteeno/bedrock,sylvestre/bedrock,MichaelKohler/bedrock,pascalchevrel/bedrock,MichaelKohler/bedrock,craigcook/bedrock,MichaelKohler/bedrock,alexgibson/bedrock,pascalchevrel/bedrock,alexgibson/bedrock,pascalchevrel/bedrock,flodolo/bedrock,hoosteeno/bedrock,sylvestre/bedrock,craigcook/bedrock,MichaelKohler/bedrock,hoosteeno/bedrock,flodolo/bedrock,sylvestre/bedrock,sylvestre/bedrock,ericawright/bedrock,pascalchevrel/bedrock,hoosteeno/bedrock,ericawright/bedrock