#4315 editing rule codes

[cielbellerose]

Changes

Edit rule code functionality added

Notes

• Rule content is now allowed to be empty on create & edit
• Update add rule modal to autofill with parent rule code
• Warning if adding new rule doesn't match parent rule code
• Warning modal for editing rule code if parent or children are misaligned

Notes

Decided to allow parents and children to have misaligned rule codes by recommending but not strictly enforcing rule code prefixes

Screenshots

Checklist

It can be helpful to check the Checks and Files changed tabs.
Please review the contributor guide and reach out to your Tech Lead if anything is unclear.
Please request reviewers and ping on slack only after you've gone through this whole checklist.

• All commits are tagged with the ticket number
• No linting errors / newline at end of file warnings
• All code follows repository-configured prettier formatting
• No merge conflicts
• All checks passing
• Screenshots of UI changes (see Screenshots section)
• Remove any non-applicable sections of this template
• Assign the PR to yourself
• No yarn.lock changes (unless dependencies have changed)
• Request reviewers & ping on Slack
• PR is linked to the ticket (fill in the closes line below)

Closes #4315