fix: update output directory in config.ini and enhance URL handling

[mvidaldev]

Added a folder to save downloads, for easy pourpose.

Fixed url handling to ignore subdomains on the npm start.

[rkwyu]

A few questions:

• Is there any reason to change the default output directory from output to ./downloads/
• Shells normally remove surrounding quotes before passing args to Node. The script should work for single quotes and double quotes. Is there a reproducible case where URLs actually contain literal '?
• The subdomain normalization idea makes sense conceptually, but I think it might be better to handle this in the domain regex modules (EverandRegex.js, ScribdRegex.js, SlideshareRegex.js) rather than in run.js. Those files are already used to classify supported URLs, so putting normalization/canonicalization logic there would centralize URL handling and keep detection consistent across all supported domains (scribd.com, everand.com, slideshare.net)

Just want to understand the rationale and see if centralizing URL logic in the regex modules would be cleaner.

[mvidaldev]

I will make changes, it is my first time contributing to an open source project.

[mvidaldev]

I've made changes as asked, I've tested slideshare and it had some errors processing itens too, we have fixed the problem,

I could not test evergrand because every link fails to me. Could you provide me some valid links to test?