[Design Deliverable] Spec for light-lift fiscal quarter / calendar quarter explainer in TDP

[reitermb]

Description:

Follow-on from #3017. Formalizes prioritized light-lift ideations into handoff-ready spec.

AC:

• [ ] Includes formalized ideations for:
  • [ ] Add "Fiscal" to label
  • [ ] Add lookup table to Data Files page
• [ ] Internal Raft Review has occurred to ensure DoD standards and QA
• [ ] Dev/Design sync has occurred; resulting tickets created
• [ ] The design is usable and accessible, meaning it adheres to definition of done standards for design work.

  Expand Definition of Done Standards

  - It uses [USWDS components and follows it’s UX guidance](https://designsystem.digital.gov/components/), or a deviation is clearly documented - Language is intentional and [plain](https://plainlanguage.gov/guidelines/); placeholders are clearly documented - It follows [accessibility guidelines](https://accessibility.digital.gov/) and accessibility implementation notes are documented (e.g. clear information hierarchy, color is not the only way meaning is communicated, etc.) - If feedback identifies bigger questions or unknowns, create additional issues to investigate

Tasks:

• [ ] Draft final designs in HTML prototype or Figma
• [ ] Dev:Design sync

Supporting Documentation:

• [Prototype]()
• Ideation Mural

[victoriaatraft]

Post dev office hours feedback: UX to experiment with prototyping and laying out the table vs providing a link to a modal on the page for the light lift option. Similar to this