Add context Menu for deleting cookies

[Nikostito]

Added a context menu in the addon for deleting cookies associated with medium.com and its derivatives. This potentially solves #160 #167 #173 and others.

Potentially, because it cannot clear all cookies. Javascript gets disabled when a cookies has the httpOnly flag.

So it's only so useful. I did test it out and works cause from the 32 cookies I had on medium sites after running the "Delete all Cookies" from the context menu, the remaining were 15. Try it out and lmk.

[yashshah]

What's the status on this? I think this will unblock the issues mentioned

[huymichael]

still not work mate :(

[Nikostito]

@manojVivek Hey, you still haven't merged my changes from September 2021. Maybe give me access to your repo as I am an active contributor to the project? Thanks.