Extract UI from Bot repo for initial skeleton in the new UI repo

[nerdalert]

• Cloned the original repository (instructlab-bot) and created a new branch (extract-ui).
• Moved relevant files and directories (ui, .github, templates, lints) into the ui directory.
• Used git filter-branch to retain only the ui directory, making it the root.
• Cleaned up unnecessary history and references.
• Merged new-origin/main into extract-ui with --allow-unrelated-histories to incorporate the initial commit from the new repository.

This process preserves the commit history from the original repository along with Russell's initial commit from the new repository.