Problem
Choosing a different token-group in the pricing sidebar only updated the filter but did **not** refresh the displayed group ratio in both the Table (`@table/`) and Card (`@card/`) views. The callback used by the sidebar changed `filterGroup` yet left `selectedGroup` untouched, so ratio columns/cards kept showing the previous value.
Solution
• `PricingSidebar.jsx`
– Accept new prop `handleGroupClick` (from `useModelPricingData`).
– Forward this callback to `PricingGroups` (`setFilterGroup={handleGroupClick}`) while retaining `setFilterGroup` for reset logic.
– Keeps both `filterGroup` filtering and `selectedGroup` state in sync via the single unified handler.
Result
Switching groups in the sidebar now simultaneously updates:
1. the model list filtering, and
2. the ratio information shown in both pricing Table and Card views.
No UI/UX regression; linter passes.
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