Include latest @types/cheerio

[hideo54]

Closes #157.

Hi, thanks for the awesome product!

As pointed out in the issue #157, some type errors occur when you use scrape-it with TypeScript. That's because this product does not include @types/cheerio in dependencies. Moreover, old definitions in @types/cheerio are used in lib/index.d.ts so that installing the latest @types/cheerio does not help.

To reproduce the errors, you just need to:

• Run npm ci and do nothing else
• Write a very simple TypeScript program in which ./lib is imported.
• Run tsc and you will see the errors

Here I made some changes:

• Install the latest @types/cheerio
• Fix lib/index.d.ts

I confirmed that these changes successfully pass a simple build task without errors.

There will be other ways to fix the issue, such as making some changes to use the latest cheerio (officially typed!) instead of installing @types/cheerio. That will be fine, but I think my proposal is the easiest way to fix the problem.

[cheeplusplus]

There's no reason to use @types/cheerio anymore, newer versions of cheerio have types included.

[hideo54]

Right, that's another solution. However, scrape-it does not use cheerio, instead it uses cheerio-req, which depends on old cheerio without types, so it's more complex to modify. I made this pull request for the purpose of quick fix.

[hideo54]

Hi, what do you think about this pull request? @IonicaBizau