Ipv6 literal fixes

[pv2b]

This PR fixes #11560 and fixes #11558 and fixes #11559

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

Summary by CodeRabbit

• Bug Fixes
  • IPv6 addresses now display with correct bracket notation in connection details.
  • IPv4-mapped IPv6 addresses are presented as IPv4 for clearer network info.
  • TCP and UDP connection displays unified for a more consistent user experience.
  • Connection label length increased to accommodate IPv6 bracketed addresses and port notation.