Show manage models action in the search input

[sandy081]

No description provided.

[Copilot]

Pull request overview

Updates the chat model picker and the underlying action widget list to support showing an optional “Manage Models” action inline with the filter input (instead of always as a list item), improving discoverability when the picker has many models.

Changes:

• Add support for optional filterActions in ActionList and render them next to the filter input.
• Adjust model picker behavior to show “Manage Models” as a filter-row action when filtering is enabled, otherwise as a list entry.
• Add CSS to lay out and style the new filter row actions.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
src/vs/workbench/contrib/chat/browser/widget/input/chatModelPicker.ts	Refactors “Manage Models” into a reusable action and conditionally places it either in the list or in filter-row actions.
src/vs/platform/actionWidget/browser/actionWidget.css	Adds layout/styling for a filter row with right-aligned actions.
src/vs/platform/actionWidget/browser/actionList.ts	Extends action list options with filterActions and renders an action bar in the filter row.

Comments suppressed due to low confidence (1)

src/vs/workbench/contrib/chat/browser/widget/input/chatModelPicker.ts:375

• The Manage Models entry is now only added when manageModelsAction is passed. Existing callers that rely on buildModelPickerItems to include the Manage Models item based on entitlement (e.g. the current unit tests in chatModelPicker.test.ts) will stop seeing it and will fail. Either update all call sites/tests to pass manageModelsAction, or keep the previous internal entitlement-based fallback in buildModelPickerItems (and add an explicit option to suppress it when the filter-row action is used).

	if (manageModelsAction) {
		items.push({ kind: ActionListItemKind.Separator, section: otherModels.length ? ModelPickerSection.Other : undefined });
		items.push({
			item: manageModelsAction,
			kind: ActionListItemKind.Action,
			label: manageModelsAction.label,
			group: { title: '', icon: Codicon.blank },
			hideIcon: false,
			section: otherModels.length ? ModelPickerSection.Other : undefined,
			showAlways: true,
		});