Spike - Relative date values for Flow node date filter "Before"

[toco-cam]

Engineering DRI: @misiekhardcore

Context

Customer request.

Acceptance Criteria

• Feedback on whether this can be supported as a filter option of "Before", implemented in the front end.

Testing Notes

Links

Breakdown

### Pull Requests

Task Lifecycle

For managing the issue lifecycle, please use the workflow commands. You can see the available commands by writing /help as a comment on this issue.

Review

Engineering Review

• [ ] All code targeting the main branch has been reviewed by at least one Engineer
• [ ] The PR targeting the main branch has been approved by the reviewing Engineer
• [ ] If the API has changed, the API documentation is updated
• [ ] All other PRs (docs, controller etc.) in the breakdown have been approved

QA Review

• [ ] The change is implemented as described on all target environments/versions/modes
• [ ] The documentation changes are as expected

Completion

• [ ] All Review stages are successfully completed
• [ ] All associated PRs are merged to the main branch(es) and stable branches
• [ ] The correct version labels are applied to the issue

[toco-cam]

@RomanJRW see task here. Please discuss this with @misiekhardcore

[RomanJRW]

/assign @misiekhardcore