More UI fixes

[jwellnit]

for some reason, marking the work container as a "row" was causing a host of ui issues for both collections and for the entire work view page when logged out. Fixes this and makes some style adjustments to the home page

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.73%. Comparing base (7eb4793) to head (d907add).

Additional details and impacted files

@@              Coverage Diff               @@
##           hyrax-4-take2    #1218   +/-   ##
==============================================
  Coverage          98.73%   98.73%           
==============================================
  Files                201      201           
  Lines               3397     3397           
==============================================
  Hits                3354     3354           
  Misses                43       43           

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