Add 'Block Outsider Intrusion into LAN' filter

Hi.

Some websites can HACK into LAN using JS.

More information here:
https://github.com/uBlockOrigin/uBlock-issues/issues/1070#issue-62499511

http://ghacks.net/2020/05/25/ebay-is-port-scanning-your-system-when-you-load-the-webpage

Here is more info about exploits:
https://www.oligo.security/blog/0-0-0-0-day-exploiting-localhost-apis-from-the-browser

So can you please integrate filter like this into your base filter list:
https://ublockorigin.github.io/uAssetsCDN/filters/lan-block.txt

Or somehow hardcode this into apps/extensions?