refactor: remove unnecessary class assignments in model picker items

[sandy081]

No description provided.

[Copilot]

Pull request overview

Refactors the chat model picker item definitions to drop custom CSS class assignments on certain “manage/add models” entries in the action list.

Changes:

• Removed custom item.class values for the “Manage Models…” and “Add Language Models / Add Premium Models” actions.
• Removed className: 'manage-models-link' from the corresponding IActionListItem entries.

Comments suppressed due to low confidence (1)

src/vs/workbench/contrib/chat/browser/widget/input/chatModelPicker.ts:369

• This item previously used className: 'manage-models-link', which is referenced by chat.css to apply link-like colors for these bottom actions. Dropping the className will regress the visual affordance for “Add Language Models / Add Premium Models”. Keep the className or adjust the CSS accordingly.

			kind: ActionListItemKind.Action,
			label: isNewOrAnonymousUser ? localize('chat.moreModels', "Add Language Models") : localize('chat.morePremiumModels', "Add Premium Models"),
			group: { title: '', icon: Codicon.add },
			hideIcon: false,
			showAlways: true,
		});