chore(helpers): moving type safety check to helpers file

Author: ShaneK

core/src/utils/floating-point/index.ts

@@ -1,4 +1,4 @@
-import { isSafeNumber } from '../type-guards.ts';
+import { isSafeNumber } from "@utils/helpers";
 
 export function getDecimalPlaces(n: number) {
   if (!isSafeNumber(n)) return 0;

core/src/utils/helpers.ts

@@ -424,3 +424,10 @@ export const getNextSiblingOfType = <T extends Element>(element: Element): T | n
   }
   return null;
 };
+
+/**
+ * Checks input for usable number. Not NaN and not Infinite.
+ */
+export const isSafeNumber = (input: unknown): input is number => {
+  return typeof input === 'number' && !isNaN(input) && isFinite(input);
+};