Align chat welcome view styles to other empty states

[daviddossett]

Aligns chat welcome view styles with other welcome views (e.g. integrated browsers) for consistency

[Copilot]

Pull request overview

This PR updates the chat welcome view styling to match the integrated browser's welcome view, creating a more consistent visual experience across the application. The changes primarily involve adjusting font sizes, colors, spacing, and margins to align with the established browser welcome view design pattern.

Changes:

• Updated chat welcome view CSS to match browser welcome view styling (icon, title, message, disclaimer, and suggested prompts)
• Removed trailing period from disclaimer text for a lighter, less formal tone

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/vs/workbench/contrib/chat/browser/widget/media/chatViewWelcome.css	Updated welcome view styling to match integrated browser: icon (40px with descriptionForeground color), title (13px, font-weight 600), message and disclaimer (12px with updated colors and spacing), suggested prompts (smaller dimensions and font sizes), and removed text-transform from provider label
src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts	Removed trailing period from disclaimer text "AI responses may be inaccurate" to create a lighter, less formal tone

Comments suppressed due to low confidence (1)

src/vs/workbench/contrib/chat/browser/widget/media/chatViewWelcome.css:119

• The paragraph margin styling here differs from the integrated browser's welcome view. The browser welcome view uses margin-top: 8px; margin-bottom: 8px; for paragraphs within the subtitle (see browser.css lines 348-350), but this change sets margin: 0;. For consistency with the integrated browser styling that this PR aims to match, consider using the same paragraph margin values.

		p {
			margin: 0;
		}