fix: Event property fixes (#5108)

* Fix usd value on NFT buy bag success

* Fix bag quantity property on nft_buy_bag_changed

src/nft/components/bag/BagContent.tsx

@@ -69,7 +69,7 @@ export const BagContent = () => {
             name={EventName.NFT_BUY_BAG_CHANGED}
             properties={{
               usd_value: fetchedPriceData,
-              bag_quantity: itemsInBag,
+              bag_quantity: itemsInBag.length,
               ...formatAssetEventProperties(unavailableAssets),
             }}
             shouldLogImpression

src/nft/components/collection/TransactionCompleteModal.tsx

+import { formatEther } from '@ethersproject/units'
 import { EventName, ModalName } from 'analytics/constants'
 import { Trace } from 'analytics/Trace'
 import { useTrace } from 'analytics/Trace'
@@ -82,7 +83,7 @@ const TxCompleteModal = () => {
                 name={EventName.NFT_BUY_BAG_SUCCEEDED}
                 properties={{
                   buy_quantity: nftsPurchased.length,
-                  usd_value: totalPurchaseValue,
+                  usd_value: parseFloat(formatEther(totalPurchaseValue)) * ethPrice,
                   transaction_hash: txHash,
                   ...formatAssetEventProperties(nftsPurchased),
                   ...trace,