Router Query Value Changed

# Introduction

In this project, you will learn how to resolve an issue in the vue-router v3.4.0 version where undefined values in router queries are now changed to undefined strings. You will fix this issue by modifying the `resolveQuery` function in the `query.js` file of the vue-router library.

## 👀 Preview


## 🎯 Tasks

In this project, you will learn:

- Locate and understand the `resolveQuery` function in the `query.js` file
- Modify the `resolveQuery` function to properly handle undefined values in the query
- Rebuild the vue-router 3.4.0 project with the fix
- Test the fix to ensure that undefined values in the query are now correctly displayed as empty strings

## 🏆 Achievements

After completing this project, you will be able to:

- Identify and fix issues in a third-party library
- Apply techniques for modifying and rebuilding a project to apply a fix
- Understand the importance of thoroughly testing changes to ensure the desired behavior is achieved