feat: add analytics for moonpay ip check

src/state/application/hooks.ts

+import { sendAnalyticsEvent } from '@uniswap/analytics'
 import { DEFAULT_TXN_DISMISS_MS } from 'constants/misc'
 import { useCallback, useEffect, useMemo, useState } from 'react'
 import { useAppDispatch, useAppSelector } from 'state/hooks'
@@ -51,6 +52,7 @@ export function useFiatOnrampAvailability(shouldCheck: boolean, callback?: () =>
       setLoading(true)
       try {
         const result = await getMoonpayAvailability()
+        sendAnalyticsEvent('MoonPay Geochecker', { success: result })
         if (stale) return
         dispatch(setFiatOnrampAvailability(result))
         if (result && callback) {