fix: usdc prices shouldn't reload when v3 prices reload

src/hooks/useUSDCPrice.ts

@@ -2,12 +2,12 @@ import { Currency, CurrencyAmount, Price, Token } from '@uniswap/sdk-core'
 import { useMemo } from 'react'
 import { USDC } from '../constants/tokens'
 import { useV2TradeExactOut } from './useV2Trade'
-import { useBestV3TradeExactOut, V3TradeState } from './useBestV3Trade'
+import { useBestV3TradeExactOut } from './useBestV3Trade'
 import { useActiveWeb3React } from './web3'
 
 // USDC amount used when calculating spot price for a given currency.
 // The amount is large enough to filter low liquidity pairs.
-const usdcCurrencyAmount = CurrencyAmount.fromRawAmount(USDC, 100_000e6)
+const USDC_CURRENCY_AMOUNT_OUT = CurrencyAmount.fromRawAmount(USDC, 100_000e6)
 
 /**
  * Returns the price in USDC of the input currency
@@ -16,10 +16,10 @@ const usdcCurrencyAmount = CurrencyAmount.fromRawAmount(USDC, 100_000e6)
 export default function useUSDCPrice(currency?: Currency): Price<Currency, Token> | undefined {
   const { chainId } = useActiveWeb3React()
 
-  const v2USDCTrade = useV2TradeExactOut(currency, chainId === 1 ? usdcCurrencyAmount : undefined, {
+  const v2USDCTrade = useV2TradeExactOut(currency, chainId === 1 ? USDC_CURRENCY_AMOUNT_OUT : undefined, {
     maxHops: 2,
   })
-  const v3USDCTrade = useBestV3TradeExactOut(currency, chainId === 1 ? usdcCurrencyAmount : undefined)
+  const v3USDCTrade = useBestV3TradeExactOut(currency, chainId === 1 ? USDC_CURRENCY_AMOUNT_OUT : undefined)
 
   return useMemo(() => {
     if (!currency || !chainId) {
@@ -46,7 +46,7 @@ export default function useUSDCPrice(currency?: Currency): Price<Currency, Token
     if (v2USDCTrade) {
       const { numerator, denominator } = v2USDCTrade.route.midPrice
       return new Price(currency, USDC, denominator, numerator)
-    } else if (v3USDCTrade.state === V3TradeState.VALID && v3USDCTrade.trade) {
+    } else if (v3USDCTrade.trade) {
       const { numerator, denominator } = v3USDCTrade.trade.route.midPrice
       return new Price(currency, USDC, denominator, numerator)
     }