fix: unhandled error when numbers are null

src/content/utils/formatting.ts

@@ -6,6 +6,8 @@ function toFixed(num: number, fixed: number) {
 }
 
 export function formatPrice(keys: number, metal: number, keyPrice: number, locale: string = 'en') {
+	if(keys == null) keys = 0
+	if(metal == null) metal = 0
 	const formattedKeys = +(keys + (metal / keyPrice)).toFixed(2)
 
 	let output: string = ''