Update Person references to Animal in DG's UI section

[aizatazhar]

Closes #171

[codecov]

Codecov Report

Merging #198 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #198   +/-   ##
=========================================
  Coverage     72.54%   72.54%           
  Complexity      516      516           
=========================================
  Files            83       83           
  Lines          1548     1548           
  Branches        154      154           
=========================================
  Hits           1123     1123           
  Misses          370      370           
  Partials         55       55           

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