Manual Date Range Entry with Presets

[blakenan-bellese]

Goal

Replace the date range dropdown with date picker fields, keeping preset options as a convenience.

Changes

• Replace the single "Date Range" dropdown with:
  • A Presets dropdown (e.g., "2026", "2022 - Q1", etc.) that auto-fills the date pickers when selected
  • Two date picker fields (Start Date, End Date) that show the current period
  • Users can manually edit the date picker values, which clears/overrides the preset selection
• The start/end dates are what get passed to $gather — the preset is just a convenience for populating them

Key Files

• frontend/src/layout/MainLayout/Header/HeaderContent/index.js — replace Selection with date pickers + presets
• frontend/src/utils/queryHelper.js — simplify to pass raw start/end dates (no quarter conversion needed)
• frontend/src/store/reducers/filter.js — change date state from preset ID to { start, end, preset } object
• frontend/src/store/reducers/data.js — update buildMeasurePayload to use start/end directly