chore: update ESLint configuration (calcom#22924)

Author: zhyd1997

.eslintrc.js

@@ -1 +1,5 @@
-module.exports = require("./packages/config/eslint-preset");
+// This configuration only applies to the package manager root.
+/** @type {import("eslint").Linter.Config} */
+module.exports = {
+  extends: ["./packages/config/eslint-preset.js"],
+};

apps/api/v1/pages/api/availability/_get.ts

@@ -191,7 +191,7 @@ const availabilitySchema = z
 async function handler(req: NextApiRequest) {
   const { isSystemWideAdmin, userId: reqUserId } = req;
   const { username, userId, eventTypeId, dateTo, dateFrom, teamId } = availabilitySchema.parse(req.query);
-  const userAvailabilityService = getUserAvailabilityService()
+  const userAvailabilityService = getUserAvailabilityService();
   if (!teamId)
     return userAvailabilityService.getUserAvailability({
       username,