Move HomeModelPicker to components/ModelPicker and give it what the
other pickers had: multiple selection with chips, free text, a clear
button, a search box on demand, a form-field look, and loading and
empty states. Every entry shows 'alias of X', disabled, pinned or
broken-alias tags from the capabilities listing, and entries that
cannot be used are not selectable. Auto-select skips them.
Add-ons keep HomeModelPicker as a name for the same component.
Assisted-by: Claude Code:claude-sonnet-5-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>