fix: remaining hardcoded strings in dashboard page

frontend/src/routes/dashboard/+page.svelte

@@ -69,7 +69,7 @@
 		<div class="flex flex-col md:flex-row md:items-center justify-between gap-4">
 			<div>
 				<div class="flex items-center gap-2 text-xs text-muted-foreground mb-1">
-					<span>Dashboard</span>
+					<span>{m.sidebar_dashboard()}</span>
 					{#if stats?.company_name}
 						<span>/</span>
 						<span class="text-primary font-medium">{stats.company_name}</span>
@@ -107,7 +107,7 @@
 	{#if error}
 		<Alert.Root variant="destructive">
 			<CircleAlert class="h-4 w-4" />
-			<Alert.Title>Error</Alert.Title>
+			<Alert.Title>{m.exchange_rate_error_title()}</Alert.Title>
 			<Alert.Description>{error}</Alert.Description>
 		</Alert.Root>
 	{/if}