[6.0] Add the js-grid-item-is-checked class and remove onClick HtmlHelper Grid

[LadySolveig]

Pull Request for Issue # .

Summary of Changes

This PR adds the js-grid-item-is-checked class and remove onClick in the HtmlHelper for Grid as it was originally prepared in the script.

joomla-cms/build/media_source/system/js/list-view.es6.js

Line 99 in 04d4276

target.querySelectorAll('.js-grid-item-is-checked').forEach((element) => element.addEventListener('click', applyIsChecked));

Additional Note:

Follow up for PR #44501 as I unfortunately messed up my branch when attempting to resolve a conflict.
Important hint from @dgrammatiko #44501 (comment)

Testing Instructions

• install blog sample data
  BACKEND
• go to articles list view
• try out if you can mark single articles bei checkbox and by clicking on the row
• try out if you can mark multiple articles
• try out if you can select and deselect all articles
• try if you can mark articles and use the batch processes
  FRONTEND

1. go to Sample Layouts -> Category List
   • check if ordering works as expected
     
2. create menu item with menu item type -> List All Tags
   • check if filter works as expected
3. create menu item with menu item type -> Featured Contacts
   • check if ordering works as expected

Install this PR
Do the same again.

Actual result BEFORE applying this Pull Request

All should work.

Expected result AFTER applying this Pull Request

All should work as before.

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org: WIP

• No documentation changes for manual.joomla.org needed

[brianteeman]

I have tested this item ✅ successfully on 77a36e1

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[brianteeman]

Does this also solve #45770

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[dgrammatiko]

I have tested this item ✅ successfully on 77a36e1

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[alikon]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/45910.}

[dgrammatiko]

Does this also solve #45770

Not the onclick="Joomla.tableOrdering, these are inline scripts on another file: libraries/src/HTML/Helpers/Grid.php