[#2124] Siteimprove interval pause

[jiromaykin]

When the _sz Array is coming in from SiteImprove, only then should the click events be pushed to that same array.

Done: Commented out Mock (the Mock may have been overwriting the ACTUAL _sz object)

• Added console logging in the code to monitor _sz interactions.
• Periodically checking the _sz object by using a 'poller'.

Network Tab in inspector (use incognito window, accept cookies, disable adblockers):

Open Network tab.
Reload the page.
Filter by "sz" or relevant domain.
Click on relevant requests to inspect.

See:
issue: https://taiga.maykinmedia.nl/project/open-inwoner/us/2124
issue: https://taiga.maykinmedia.nl/project/open-inwoner/issue/2622

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.23%. Comparing base (8f22d47) to head (7cc079e).
Report is 11 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1303      +/-   ##
===========================================
+ Coverage    95.11%   95.23%   +0.11%     
===========================================
  Files          995      999       +4     
  Lines        36472    37984    +1512     
===========================================
+ Hits         34692    36174    +1482     
- Misses        1780     1810      +30     

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[alextreme]

To be checked by me with Jiro on thursday

[alextreme]

Verified on MijnGroningen production, @pi-sigma please review for including in 1.20.x