Support lint name searches on our lint list with the `clippy::` prefix

[xFrednet]

Description

When you search for a lint name like absurd_extreme_comparisons you find the name as expected. When you take the name from the copy button, with the clippy:: prefix, the search doesn't find the name. Example:

I would expect it to work in both cases

Version

The current one: https://rust-lang.github.io/rust-clippy/master/index.html

Additional Labels

No response

[Serial-ATA]

@rustbot claim