Discovery: Not all table cells in a tablefield table should be required.

[swirtSJW]

Describe the defect

Using the tablefield module, the current setting of the field being required on the paragraph makes it so that no cells can be empty. This should not be the intention of "required". It should count the fact that one or more cell have data should be enough to pass the requirement of being required.

To Reproduce
Steps to reproduce the behavior:

1. Create or edit an existing "Benefits detail page"
2. Scroll down to Main Content and add a paragraph table,
3. Populate all the cells but one.
4. Save the node
5. See error that table field can not be empty and behold all the redness.

Expected behavior
As long as one cell is populated, it should count as not empty. Should not have to use the workaround of putting a space in every cell.

Screenshots

**Background investigation Done **
It is unrelated to our use of this patch https://www.drupal.org/project/tablefield/issues/3100109 I have removed the patch and get the same behaviour.

Options

Option 1, a workaround that we've already implemented: make table field optional.
Option 2: Patch the module based on this issue that I created https://www.drupal.org/project/tablefield/issues/3117855 Part of that solution may need to incorporate a rework of this ticket too https://www.drupal.org/project/tablefield/issues/3100109 which we created the patch for, but needs some rework.

Acceptance Criteria

• Determine if there are table cells that are empty and document them

[swirtSJW]

@kevwalsh Sizing this depends on whether we go option 1 or 2.
Option 1 ... 1 point
Option 2 ... 5 points

[swirtSJW]

This is related to this issue #1120

[AnneHurley]

Also @RLHecht and @jenniferlee-dsva FYSA

[kevwalsh]

@swirtSJW Option 1 makes a lot of sense, for now. Then we spin off a ticket for option 2 that goes in the backlog? I agree, no editor will create a totally empty table.

[kevwalsh]

@AnneHurley We've already implemented Option 1 for this, we are going to icebox Option 2 until we understand that is a priority.

[kevwalsh]

A patch was submitted on d.o. for this, we should review it to see if it solves for option 2.