Add favicon

[Bibhavshah]

[kalashshah]

Please provide a proper description of your issue.

[Bibhavshah]

Adding favicon will make the tab distinguishable from other tabs when there are multiple tabs open in the browser.

Here is a example

[AkhileshManda]

@Bibhavshah I am assigning this issue to you, do get back with a few ideas before creating a PR for the same.

[AkhileshManda]

@Bibhavshah are you still working on this issue?