fix: add grid-filled to IGalleryDisplayConfig

[vivzhang]

affects: @esri/hub-common

1. Description:

2. Instructions for testing:

3. Closes Issues: # (if appropriate)

4. Updated meaningful TSDoc to methods including Parameters and Returns, see Documentation Guide

5. used semantic commit messages

6. PR title follows semantic commit format (CRITICAL if the title is not in a semantic format, the release automation will not run!)

7. updated peerDependencies as needed. CRITICAL our automated release system can not be counted on to update peerDependencies so we must do it manually in our PRs when needed. See the updating peerDependencies section of the release instructions for more details.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (27c08b8) to head (a1fbb1a).
Report is 35 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##            master     #1818     +/-   ##
===========================================
  Coverage   100.00%   100.00%             
===========================================
  Files         1035      1086     +51     
  Lines        18879     20033   +1154     
  Branches      3450      3771    +321     
===========================================
+ Hits         18879     20033   +1154     

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