Fix typo in Network Routes dialogue (#395)

Author: juliaroesschen

src/modules/routes/RouteModal.tsx

@@ -577,9 +577,9 @@ export function RouteModalContent({
 
             <div className={cn("flex justify-between")}>
               <div>
-                <Label>Metrics</Label>
+                <Label>Metric</Label>
                 <HelpText className={"max-w-[200px]"}>
-                  Lower metrics indicating higher priority routes.
+                  A lower metric indicates a higher priority route.
                 </HelpText>
               </div>