Allow hiding right click menu options

[hserranome]

Is your feature request related to a problem? Please describe.
I like having only stuff that I use regularly in my right click menu.

Describe the solution you'd like
I would love an hideContextMenuOptions: boolean setting to be able to hide these.

Describe alternatives you've considered
Learn to ignore them, or delete the extension. Unless there is already a way to hide these.

Additional context
I'm open to creating a PR for this, when I'm sure of the scope of it and that you would be open to it or an alternative to it. Maybe it can have more granularity on what options the user could hide rather than a boolean.

For example maybe I find much more useful creating a Gist from a selection than pasting from a gist directly.