Prayag Thakur

[Feature] Adding a signup/login Popup on Home Page.

2

### Description Adding a signup/login Popup on Home Page which will tell some discount/trend/new-feature or something that will provoke user to login. ### Screenshots _No response_ ### Checklist - [X]...

### Description This pull request is for adding a new Backtracking Problem. ### Changes Made - Implemented M coloring Problem using Backtracking. ### Testing g++ M_ColoringProblem.cpp