refactor(2024/day/14/part/2): use @lib/mod

also fix test case

Author: mfulton26

2024/day/14/part/2/solve.test.ts

@@ -17,5 +17,5 @@ p=7,3 v=-1,2
 p=2,4 v=2,-3
 p=9,5 v=-3,-3`;
 
-  assertEquals(solve(input, { width: 11, height: 7 }), 12);
+  assertEquals(solve(input, { width: 11, height: 7 }), 1);
 });

2024/day/14/part/2/solve.ts

@@ -1,3 +1,5 @@
+import mod from "@lib/mod.ts";
+
 const regExp = /^p=(?<px>\d+),(?<py>\d+) v=(?<vx>-?\d+),(?<vy>-?\d+)$/gm;
 
 export default function solve(
@@ -17,7 +19,3 @@ export default function solve(
     return t;
   }
 }
-
-function mod(a: number, b: number) {
-  return ((a % b) + b) % b;
-}