refactor: Rewrite to typescript

tests/test.ts

@@ -15,7 +15,7 @@
 import fs from "fs";
 import parseAbsence from "../scrape/utils/parseAbsence.js";
 
-const teachermap = JSON.parse(fs.readFileSync("./teachermap.json"));
+const teachermap: Record<string, string> = JSON.parse(fs.readFileSync("./tests/teachermap.json", "utf8"));
 
 test("Me", [
   {
@@ -232,6 +232,7 @@ test("za Vn zastupuje Jk", [
     teacher: "Ing. Zdeněk Vondra",
     teacherCode: "vn",
     type: "zastoupen",
+    hours: null,
     zastupuje: {
       teacher: "David Janoušek",
       teacherCode: "jk",
@@ -257,18 +258,18 @@ test("Sv-5-exk", [
   },
 ]);
 
-function test(input, expectedOutput) {
+function test(input: string, expectedOutput: any[]) {
   const res = parseAbsence(input, teachermap);
 
   if (!deepEqual(res, expectedOutput)) {
     console.error("ERROR for input: " + input);
-    console.log(res);
-    console.log(expectedOutput);
+    console.log(JSON.stringify(res, null, 2));
+    console.log(JSON.stringify(expectedOutput, null, 2));
     console.log();
   }
 }
 
-function deepEqual(a, b) {
+function deepEqual(a: any, b: any): boolean {
   if (a === b) return true;
 
   if (