Empty pathMatch for Correct Path Calculation

# Introduction

In this project, you will learn how to fix a bug in the `vue-router-3.1.5` library. The bug is related to the `fillParams` function, which is responsible for filling in the parameters in the URL path. When the `pathMatch` parameter is an empty string, it can affect the calculation of the correct path.

## 👀 Preview


## 🎯 Tasks

In this project, you will learn:

- How to locate the `fillParams` function in the `vue-router-3.1.5/src/util/params.js` file
- How to modify the `fillParams` function to address the issue with empty `pathMatch`
- How to rebuild the `vue-router` project with the updated `fillParams` function
- How to test the fix by refreshing the browser window and verifying the correct behavior of the address bar

## 🏆 Achievements

After completing this project, you will be able to:

- Identify and fix bugs in a third-party library
- Rebuild a project after making code changes
- Test a fix to ensure the desired behavior is achieved