Extension ID Ordering & Expansion capability for sidebar (extensions & profiles)

[mikeradka]

The Extension IDs are out of sequence, most likely because of alphabetical sorting by name. Show the extension id on mouse hover.

Also, as Extensions and Profiles grow, so will the list on the sidebar. To make a slight improvement to the web ui, add a triangle to expand/collapse extensions and profiles like so:

> Extensions (collapsed)
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> Profiles (collapsed)
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> Extensions (expanded)
   Linux
   Windows
   Macwhatever
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> Profiles (expanded)
  Cloud
  Next Profile
  Yadda Yadda
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