fork ui-menu and make active items clickable

[indirectlylit]

Copies code from ui-menu into our code-base, and adds a new 'active' option.

Shorter-term, this provides a way to get back to the root level of the coach app after selecting a class, which is not currently possible with the state of the UI.

Longer-term, this also allows us greater control over this component and allows us to remove some unscoped files.

fixes #1160

[codecov-io]

Codecov Report

Merging #1162 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1162   +/-   ##
========================================
  Coverage    73.79%   73.79%           
========================================
  Files          136      136           
  Lines         4358     4358           
  Branches       491      491           
========================================
  Hits          3216     3216           
  Misses        1080     1080           
  Partials        62       62

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[indirectlylit]

@christianmemije @rtibbles thoughts?

[christianmemije]

Would be helpful if the options were links.

[christianmemije]

Did you make any changes besides adding the 'active' option? If so can you point them out?

[indirectlylit]

Would be helpful if the options were links.

Agreed. There's a lot of cleanup and modification we can do now with the code in our own repo.

Did you make any changes besides adding the 'active' option? If so can you point them out?

Nope. This PR is broken into two main commits:

• a706e24 is a simple port of the components, with no functional changes. Just enough editing to pass our linters.
• 4d0a23c is where the active option was added.

[rtibbles]

This works, can do further clean up as we turn these things into links!