Feature/dynamic logo from skin

[AoKoori]

Feat(logo): load logo from skin :

Add feature to modify displayed logo in K9s console from skins

Description :

This PR introduces a new feature that allows users to modify the displayed logo in the K9s console by loading it from the skin of the context.

Changes :

Feature Implementation :

Added functionality to load and display the logo from the context skin in the K9s console.
Updated the configuration to support custom logos.

How to load a custom logo :

it's really simple in your skin put this or create your own ascii art
(k9s skin doc)

# Skin...
k9s:
  body:
    logoUrl: https://raw.githubusercontent.com/AoKoori/k9s/refs/heads/Feature/dynamic-logo-from-skin/assets/dev.txt
#   You can also use local file
#   logoUrl: file:<absolute-path-to-your-file>   
    fgColor: red
    bgColor: default
    logoColor: red

Testing :

• Manual testing performed to ensure the logo is correctly loaded and displayed from the context skin.
• Manual testing performed to ensure the default logo is displayed if none is provided in the skin.

Screenshots :

Here are some exemples

[AoKoori]

Clean PR of #3180