[improvement] additional code selection feature

[a-bakos]

Hi Bennett,

I don't know if you intend to improve upon this awesome project or take any PRs, but if you do, I have an idea for a possibly useful feature.

I think it would be great if the user could have the option to select the actual code to copy instead of moving the mouse around that may occasionally cause a failed selection.

I forked Clippy and was experimenting on it, added a small amount of code. Here's a picture of what I ended up with, and also to demonstrate what I mean exactly:

What do you think?

[brndto]

::selection css selector would be nicely used in combination with this :)