Add Logout for Demo

[RychardHunt]

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name: 🚀 Add Logout Functionality about: Implemented Firebase Logout

Pull Request

Related Issue resolve #104

Describe the solution you implemented Firebase authentication and then reset redux state to initial state.

Describe alternatives you've considered None, we need to use firebase authentication since that's what we used for signup and login.

How Has This Been Tested? Manually

Screenshots Logged in user with the filled profile After Clicking Logout Post Logout

Types of Changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [x] I have read the CONTRIBUTING document.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.