Update content/en/phones-and-computers/linux/index.md
Linux -----------------------------
- Changed Lubuntu name and link, official link is lubuntu.me
- Changed "link in Install software from Ubuntu Software" it was pointing to an old version.
- Change app permissions (it changed since Ubuntu 20.04. Now there is a Applications section in Settings where you can check and change which applications has permission to access files, or turn on camera o mic.
- Changed "travel" standard account
- Changed "delete fingerprint" instructions, the link was pointing to another page and there are no instructions in Ubuntu Help.