fix: Bitcoin price chart display and percentage calculation

- Fix chart lines not appearing by using correct ECharts data format
- Remove unused encode block that expected object data but received arrays
- Fix tooltip formatter to read value directly instead of value[1]
- Fix 0% price change by comparing first vs last rate instead of consecutive rates

Author: whosthatguy

src/components/relay-dashboard/totalEarning/TotalEarning.tsx

@@ -29,9 +29,9 @@ export const TotalEarning: React.FC = () => {
   }, [bitcoinRates]);
 
   const latestRate = bitcoinRates.length > 0 ? Number(bitcoinRates[bitcoinRates.length - 1]?.usd_value) : undefined;
-  const previousRate = bitcoinRates.length > 1 ? Number(bitcoinRates[bitcoinRates.length - 2]?.usd_value) : undefined;
-  const isIncreased = latestRate && previousRate ? latestRate > previousRate : false;
-  const rateDifference = latestRate && previousRate ? ((latestRate - previousRate) / previousRate) * 100 : 0;
+  const firstRate = bitcoinRates.length > 1 ? Number(bitcoinRates[0]?.usd_value) : undefined;
+  const isIncreased = latestRate && firstRate ? latestRate > firstRate : false;
+  const rateDifference = latestRate && firstRate ? ((latestRate - firstRate) / firstRate) * 100 : 0;
 
 
   if (isLoading) {

src/components/relay-dashboard/totalEarning/TotalEarningChart/TotalEarningChart.tsx

@@ -39,7 +39,7 @@ export const TotalEarningChart: React.FC<TotalEarningChartProps> = ({ xAxisData,
     {
       name: t('nft.earnings'),
       type: 'line',
-      data: earningData.data.map((value, index) => [xAxisData[index], value]),
+      data: earningData.data,
       showSymbol: false,
       smooth: true,
       lineStyle: {
@@ -68,13 +68,6 @@ export const TotalEarningChart: React.FC<TotalEarningChartProps> = ({ xAxisData,
           width: 4,
         },
       },
-      encode: {
-        x: 'date',
-        y: 'usd_value',
-        label: ['date', 'usd_value'],
-        itemName: 'date',
-        tooltip: ['usd_value'],
-      },
     },
   ];
 
@@ -85,7 +78,7 @@ export const TotalEarningChart: React.FC<TotalEarningChartProps> = ({ xAxisData,
       confine: true,
       formatter: (data: any) => {
         const currentSeries = data[0];
-        const roundedValue = Math.round(currentSeries.value[1]); // Round to nearest dollar
+        const roundedValue = Math.round(currentSeries.value); // Round to nearest dollar
         return `${currentSeries.name} - ${getCurrencyPrice(
           formatNumberWithCommas(roundedValue),
           CurrencyTypeEnum.USD,