[TOOL-2773] Fix incorrect caching in useCsvUpload hook (#5820)

## Problem solved

Fixes: #5791

Problem:

User uploads a CSV1 and then uploads a CSV2 - CSV2 is ignored and CSV1's data is sent instead of CSV2 because of incorrect query cache key

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---

## PR-Codex overview
This PR focuses on refactoring the `normalizeQuery` in the `useCsvUpload` hook to improve clarity and consistency in parameter naming.

### Detailed summary
- Changed the parameter name from `o` to `item` in the `rawData.map` function for better readability.
- Updated the `queryKey` to use `item` directly instead of `o.address`.
- Maintained the same functionality while enhancing code clarity.

> ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}`

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apps/dashboard/src/hooks/useCsvUpload.ts

@@ -134,10 +134,11 @@ export function useCsvUpload<
   const { getRootProps, getInputProps, isDragActive } = useDropzone({
     onDrop,
   });
+
   const normalizeQuery = useQueries({
-    queries: rawData.map((o) => ({
-      queryKey: ["snapshot-check-isAddress", o.address],
-      queryFn: () => checkIsAddress({ item: o, thirdwebClient }),
+    queries: rawData.map((item) => ({
+      queryKey: ["snapshot-check-isAddress", item],
+      queryFn: () => checkIsAddress({ item: item, thirdwebClient }),
     })),
     combine: (results) => {
       return {
@@ -149,6 +150,7 @@ export function useCsvUpload<
       };
     },
   });
+
   const removeInvalid = useCallback(() => {
     const filteredData = normalizeQuery.data?.result.filter(
       ({ isValid }) => isValid,