Update favicon for more aesthetically pleasing option.

[ImMattDavison]

Is your feature request related to a problem? Please describe.
The issue is not related to an problem, the idea is simply aesthetic but if the favicon.ico file had round edges it may be more appealing/aesthetically pleasing.

Describe the solution you'd like
I would like to update the favicon.ico file to a more appealing less sharp-edged image with round edges instead. alternatives can be found at https://about.twitter.com/en/who-we-are/brand-toolkit

Describe alternatives you've considered
While the current favicon serves it's purpose, it could be replaced with a round edged square or circle with the blue background and white twitter icon

Additional context
I am happy to contribute this change myself, this is the current favicon which I find slightly unpleasing to the eye:

I intend to replace it with either of these images:

[ArslanYM]

Can i work on this please?

[manan1979]

hi @ImMattDavison assign this to me

[0xSaksham]

@ImMattDavison This issue is easy, should I start working on it? if yes please assign it to me.

[duhhbzz]

I agree @ImMattDavison, your proposed images are clean & smooth. Kudos