fixing outdate type cheerio on the reference module using Cheerio ins…

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• fixes Type error with the how field of type ScrapeOptionElement #193

Fixed TypeScript Typings in index.d.ts:

• Updated the ScrapeOptionElement interface to correctly type the element parameter in the how function as Cheerio, which provides proper typings and autocompletion for Cheerio methods.

export interface ScrapeOptionElement {
        selector?: string;
        convert?: (value: any) => any;
        how?: string | ((element: Cheerio) => any); // Updated type
}

• By importing Cheerio from the Cheerio type definitions and using it in the how function, TypeScript now recognizes the element parameter correctly.

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Added TypeScript Example index-type.ts

• Created a new example file example/index-type.ts to demonstrate how to use scrape-it with TypeScript.
• The example includes both Promise-based and async/await usage.
• It shows how to scrape a website and use the how function with proper typings

Thanks for review.
@IonicaBizau

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Passed all test cases.

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@IonicaBizau Please review if you have a free time

Thanks