[RT-3087] Allow me to specify custom names for link references

[blu3r4y]

Acceptance Criteria:

The recon container has 5 links to kali.org and this is shown like in the attached screenshot.

Idea:

How about allowing two variants for specifingy links, as of now, this one:

links:
  - https://www.kali.org/tools/nmap/
  - https://www.kali.org/tools/nikto/
  - https://www.kali.org/tools/dirb/
  - https://www.kali.org/tools/sqlmap/
  - https://www.kali.org/tools/commix

But, as an alternative, also this one:

links:
  - https://www.kali.org/tools/nmap/
  - url: https://www.kali.org/tools/nikto/
    name: nikto
  - url: https://www.kali.org/tools/dirb/
    name: dirb

The frontend or backend would need to differentiate if a atomic value is supplied or a url-name object is supplied. If an url-name object is supplied, the custom name is used instead of the hostname.