Improvement: Update MOTD to include IPv6 local addresses

[SuperKali]

This PR include these changes:

• Added functionality to display local IPv6 addresses in the MOTD.
• Reverted: Default behavior now excludes interfaces matching 'br-*' and 'veth'.
• This PR is referenced to another PR #7299, will be closed.

How Has This Been Tested?

Tested on my board:

For privacy reason I didn't include the WAN IP on the screenshot 👀

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes generate no new warnings
• [x] Any dependent changes have been merged and published in downstream modules

[igorpecovnik]

Default behavior now excludes interfaces matching 'br-*' and 'veth'.

I don't think this is a good idea. If bridge is set, then there is IP address set.

[SuperKali]

Default behavior now excludes interfaces matching 'br-*' and 'veth'.

I don't think this is a good idea. If bridge is set, then there is IP address set.

Ok, i will remove it from the commit

[SuperKali]

tabs

I will check tomorrow :)