Add some key listeners to improve quality of life

[frankdekker]

• change search form from onChange to keyup.enter
• add on enter listeners to the search filter dropdown
• fix the paginator first button active state.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (2b669bf) to head (0083475).
Report is 2 commits behind head on master.

❗ Current head 0083475 differs from pull request most recent head 6d7bd49. Consider uploading reports for the commit 6d7bd49 to get more accurate results

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Additional details and impacted files

@@             Coverage Diff             @@
##              master       #74   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       380       380           
===========================================
  Files             79        79           
  Lines           1015      1015           
===========================================
  Hits            1015      1015           

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