Fix gas tracker time when backend returns 0 (#1819)

Fixes #1818

ui/gasTracker/GasTrackerPriceSnippet.tsx

@@ -52,7 +52,7 @@ const GasTrackerPriceSnippet = ({ data, type, isLoading }: Props) => {
       <Skeleton isLoaded={ !isLoading } fontSize="sm" color="text_secondary" mt={ 3 } w="fit-content">
         { data.price && data.fiat_price && <GasPrice data={ data } prefix={ `${ asymp } ` } unitMode="secondary"/> }
         <span> per transaction</span>
-        { data.time && <span> / { (data.time / SECOND).toLocaleString(undefined, { maximumFractionDigits: 1 }) }s</span> }
+        { typeof data.time === 'number' && data.time > 0 && <span> / { (data.time / SECOND).toLocaleString(undefined, { maximumFractionDigits: 1 }) }s</span> }
       </Skeleton>
       <Skeleton isLoaded={ !isLoading } fontSize="sm" color="text_secondary" mt={ 2 } w="fit-content" whiteSpace="pre">
         { data.base_fee && <span>Base { data.base_fee.toLocaleString(undefined, { maximumFractionDigits: 0 }) }</span> }

ui/shared/gas/GasInfoTooltipRow.tsx

@@ -16,7 +16,7 @@ const GasInfoTooltipRow = ({ name, info }: Props) => {
     <>
       <Box>
         <chakra.span>{ name }</chakra.span>
-        { info && info.time && (
+        { info && typeof info.time === 'number' && info.time > 0 && (
           <chakra.span color="text_secondary">
             { space }{ (info.time / 1000).toLocaleString(undefined, { maximumFractionDigits: 1 }) }s
           </chakra.span>