[PR TO RELEASE] Reporting dates tables - Manual zebra-stripe and hide state dropdown options

[johnnyporkchops]

Summary

• Resolves Zebra Stripes in Reporting Dates Table Template Not Operating without Supporting Code #6583
• Give editors of ReportngDatesTable template more granular comtrol over Zebra striping by enabling the ability to add custom classes to rows in the table block.
  • Specifically for pages where the editor wants to manually stripe by election-name instead of the default -- by state.
• Also new checkbox to to hide the states dropdown on the template instead of having to add CSS the template in an HTML block
• @rfultz , I addressed your comments from the earlier closed version of this PR and missed comments from the since-merged related PR
  • formatting and indentation for functions
  • Help text question and cleanup

Required reviewers

one dev and @djgarr - ( I can push to feature when you are ready)

Impacted areas of the application

zebra striping options ReportingDatesTable templates
States dropdown on ReportingDatesTable templates
A new migration is associated with this change as well.

How to test

I can push to feature when you are ready to test @djgarr

• npm run build-js
• Open an existing or create a new page using Reporting dates table template
• Edit a cell in the State column to wrap the election name in a custom <election> html tag, like:
  • Example:<election class="fl1">Florida 1st Congressional District Special Primary</election>
• Preview or publish the page to confirm that the class was added to that row:
  • Example result in browser: <tr class="fl1 fl">
  • The zebra stripe is always based on classList[0].
• Test that footnotes still work for these cells to by putting "~1" at the very end of the content in that cell
• Test linked election names by wrapping the <election>tag in an <a> link tag
  • Example: <a href="https://www.fec.gov/help-candidates-and-committees/dates-and-deadlines/2024-reporting-dates/prior-notices-2024/election-report-notice-florida/"><election class="fl1">Florida 1st Congressional District Special Primary</election></a>
• Test the hide state dropdown checkbox