fix(table-core): allow searching of numbers (#5718)

Co-authored-by: gaga8820 <[email protected]>

Author: GaganSingh7

packages/table-core/src/filterFns.ts

@@ -5,7 +5,7 @@ const includesString: FilterFn<any> = (
   columnId: string,
   filterValue: string
 ) => {
-  const search = filterValue.toLowerCase()
+  const search = filterValue?.toString()?.toLowerCase()
   return Boolean(
     row
       .getValue<string | null>(columnId)