[Wiki update] Entry for `ultima.tabs.tab.outline.color` has outdated reference to `user.theme.xtras.tab.outline.color`

[rc-chenga]

My Checklist:

• I've looked at the FF Ultima Wiki.
• 🟠 My Browser is Firefox (Default).
• 🟣 My Browser is Firefox (Nightly).
• 🔵 My Browser is Firefox (Beta/Developer).
• ⚪ My Browser is Librewolf (fork).
• My OS (operating system) is Windows.
• My OS (operating system) is Linux.
• My OS (operating system) is Mac.
• My Browser is on the latest version.

The Issue:

Wiki entry at https://ff-ultima.github.io/docs/settings/tab-settings for "ultima.tabs.tab.outline.color" still references "user.theme.xtras.tab.outline.color"
Please consider updating with the more recent config "ultima.tabs.tab.outline.color"

Picture/Video of the Issue: