Small fixes

[shinyichen]

1. Add beta label to UAT keywords in abstract

2. Hide back link in export citation page if query is not available.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.9%. Comparing base (2a81a7e) to head (6da00c2).
Report is 9 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #609     +/-   ##
========================================
- Coverage    66.9%   66.9%   -0.0%     
========================================
  Files         181     181             
  Lines       19342   19342             
  Branches      692     693      +1     
========================================
- Hits        12937   12935      -2     
- Misses       6393    6395      +2     
  Partials       12      12             

see 1 file with indirect coverage changes

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