MWPW-155694 Decorate chatbot

[Brandon32]

• Observe and decorate dynamic chat using sticky close event.
  • MWPW-155694 Dispatch sticky close event for dynamic chat milo#2788

Resolves: MWPW-155694

Test URLs:

• Before: https://main--bacom--adobecom.hlx.live/?martech=off
• After: https://bmarshal-chat-observer--bacom--adobecom.hlx.live/?martech=off

Martech must be on and on stage or prod to see chat.

• https://bmarshal-chat-observer--bacom--adobecom.hlx.live/resources/digital-economy-index?milolibs=bmarshal-chat-promo

[aem-code-sync]

Hello, I'm the AEM Code Sync Bot and I will run some actions to deploy your branch and validate page speed.
In case there are problems, just click a checkbox below to rerun the respective action.

• Re-run PSI checks
• Re-sync branch

Commits

• 81da7be ✅ (latest)

[aem-code-sync]

	Page	Scores	Audits	Google
M	/?martech=off
D	/?martech=off
M	/resources/digital-economy-index?milolibs=bmarshal-chat-promo
D	/resources/digital-economy-index?milolibs=bmarshal-chat-promo

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.97%. Comparing base (97475e6) to head (81da7be).

Additional details and impacted files

@@            Coverage Diff             @@
##            stage     #238      +/-   ##
==========================================
+ Coverage   95.95%   95.97%   +0.01%     
==========================================
  Files          11       11              
  Lines        1088     1092       +4     
==========================================
+ Hits         1044     1048       +4     
  Misses         44       44              

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