MWPW-155566 [MEP] Changing from a new action to just expanding power of existing actions

[vgoodric]

Made a new branch and PR so we can compare the 2 and decide what we want to change.

• updated the getSelectedElement function to have a different approach:
  split and join the selector to add spaces around > and , for consistency
  split the selector by whitespace
  loop through each "term" in the selector to figure out if it starts with a simplified selector and/or ends in a child number
  benefits to this approach: can recognize consumer blocks, can enforce sections are direct children of main but still handle if main is in the selector from manifest
• no longer adding a new action called update but instead allowing most actions to accept html or text
• because we allow html and text for most actions, changed appendToSection and prependToSection to just be called append and prepend (retro support for old names)

Resolves: MWPW-148284

Since I'm no longer using a new action name, I made a new page that pulls in a new manifest. So it's easiest to compare the original page with original libs to my page with the new libs.
Also, I added the same console message to both branches so you can easily see the exact way the selector is modified for some fringe cases.

Test URLs:

• Before: https://main--cc--adobecom.hlx.page/drafts/dfedotov/fragments/test?milolibs=MWPW-148284&mepHighlight=true
• After: https://main--cc--adobecom.hlx.page/drafts/dfedotov/fragments/test-no-update?milolibs=mepreplaceregex&mepHighlight=true
• Psi-check: https://mepreplaceregex--cc--adobecom.hlx.page/drafts/mepdev/testing/psi-check

[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

• 4c8405b ✅ (latest)
• 72ec177 ✅
• 6633997 ✅
• 89eca86 ✅
• 7bb297a ✅
• 4e0d27c ✅
• 653e06f ✅
• f54ada1 ✅
• 4d8a1ae ✅
• c7d211e ✅
• 9880442 ✅
• 1adaeff ✅
• 9ed38ed ✅
• 033ae72 ✅
• 7abf9ea ✅
• 51f73f3 ✅

[aem-code-sync]

	Page	Scores	Audits	Google
M	/drafts/dfedotov/fragments/test-no-update?milolibs=mepreplaceregex&mepHighlight= true
D	/drafts/dfedotov/fragments/test-no-update?milolibs=mepreplaceregex&mepHighlight= true
M	/drafts/dfedotov/fragments/test?milolibs=MWPW-148284&mepHighlight=true
D	/drafts/dfedotov/fragments/test?milolibs=MWPW-148284&mepHighlight=true
M	/drafts/mepdev/testing/psi-check
D	/drafts/mepdev/testing/psi-check

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.86%. Comparing base (a689d1c) to head (4c8405b).
Report is 1 commits behind head on MWPW-148284.

Additional details and impacted files

@@               Coverage Diff               @@
##           MWPW-148284    #2764      +/-   ##
===============================================
- Coverage        95.86%   95.86%   -0.01%     
===============================================
  Files              173      173              
  Lines            45823    45847      +24     
===============================================
+ Hits             43930    43950      +20     
- Misses            1893     1897       +4     

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