Move localization button into the user menu

[josephmyers]

This helps clean up the top bar. The localization button won't really be used after setting it once, possibly on the home page, before even seeing this button.

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This change is 

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.84%. Comparing base (1897259) to head (33be521).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2922   +/-   ##
=======================================
  Coverage   80.84%   80.84%           
=======================================
  Files         533      533           
  Lines       31122    31122           
  Branches     5061     5066    +5     
=======================================
+ Hits        25161    25162    +1     
  Misses       5198     5198           
+ Partials      763      762    -1     

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[nigel-wells]

The code looks fine. The only thing that bugs me is the arrow pointing to the right and then the sub-menu appears to the left - can we hide that or change it to something else?

[Nateowami]

Definitely going to want to talk about this one.

[josephmyers]

The code looks fine. The only thing that bugs me is the arrow pointing to the right and then the sub-menu appears to the left - can we hide that or change it to something else?

I absolutely looked into this. It appears that any programmatic fix has been labeled as "won't fix" -- angular/components#8402 (but I didn't look into it too much further)