fix sonar warnings

commafeed-client/src/components/metrics/Gauge.tsx

@@ -1,10 +1,10 @@
 import { NumberFormatter } from "@mantine/core"
 import type { MetricGauge } from "@/app/types"
 
-interface MeterProps {
+interface GaugeProps {
     gauge: MetricGauge
 }
 
-export function Gauge(props: MeterProps) {
+export function Gauge(props: Readonly<GaugeProps>) {
     return <NumberFormatter value={props.gauge.value} thousandSeparator />
 }