fix(website): pagination reset on search page table resort (#3667)

Fixes #3665

Update `setOrderByField` and `setOrderDirection` functions to reset pagination to page 1 when sorting.

* Modify `setOrderByField` to set the page state to '1' when changing the order by field.
* Modify `setOrderDirection` to set the page state to '1' when changing the order direction.

---

For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/loculus-project/loculus/issues/3665?shareId=XXXX-XXXX-XXXX-XXXX).

website/src/components/SearchPage/SearchFullUI.tsx

@@ -136,12 +136,14 @@ export const InnerSearchFullUI = ({
         setState((prev: QueryState) => ({
             ...prev,
             orderBy: field,
+            page: '1',
         }));
     };
     const setOrderDirection = (direction: string) => {
         setState((prev: QueryState) => ({
             ...prev,
             order: direction,
+            page: '1',
         }));
     };