added notification badge

[codetheorem]

Signed-off-by: Hrishikesh Agarwal hrishikeshagarwalv@gmail.com

Issue Number

fixes #137

Describe the changes you've made

Added badge over the notification icon in navigation panel.

Describe if there is any unusual behavior (Any Warning) of your code(Write NA if there isn't)

NA

1.Go to home page 2.login into your account 3.see notification icon

Checklist

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] All new and existing tests passed.
• [x] The title of my pull request is a short description of the requested changes.