webui: Remove Google Favicons & Improve MCP Information logic & UI

[allozaur]

Overview

Removes the Google Favicons dependent logic for getting MCP Server favicons. Additionally refactors the way that we get and display the MCP Server's metadata + fixes the MCP Servers page scrolling issues.

Close #20371

Additional information

Requirements

• I have read and agree with the contributing guidelines
• AI usage disclosure: YES, refactoring

[Copilot]

Pull request overview

This PR removes the Google favicon dependency from the WebUI MCP experience, refactors how MCP server identity metadata is displayed, and tweaks some MCP/settings layout behavior. It fits into the webui MCP integration by changing both favicon resolution in the store layer and the shared UI used to render MCP server names/icons.

Changes:

• Replaced Google favicon generation with MCP-provided icons plus a root-domain favicon fallback helper.
• Introduced a reusable McpServerIdentity component and updated multiple MCP-related views to use it.
• Adjusted MCP/settings/chat UI layout and text truncation behavior, including MCP servers page scrolling.

Reviewed changes

Copilot reviewed 21 out of 23 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tools/server/webui/src/lib/utils/url.ts	Adds helper to derive a root domain for favicon fallback URLs.
tools/server/webui/src/lib/utils/index.ts	Re-exports updated utility surface and removes favicon exports.
tools/server/webui/src/lib/utils/favicon.ts	Deletes Google favicon helper.
tools/server/webui/src/lib/utils/cors-proxy.ts	Removes string helper for proxied URLs.
tools/server/webui/src/lib/stores/mcp.svelte.ts	Changes favicon selection/fallback logic and stops proxying icon URLs.
tools/server/webui/src/lib/services/mcp.service.ts	Preserves MCP icon theme metadata and removes a debug log.
tools/server/webui/src/lib/enums/ui.ts	Normalizes protocol enum values to protocol-only strings.
tools/server/webui/src/lib/enums/files.ts	Adds ICO MIME types.
tools/server/webui/src/lib/constants/mcp.ts	Allows ICO MIME types for MCP icons.
tools/server/webui/src/lib/constants/index.ts	Removes favicon constant export.
tools/server/webui/src/lib/constants/favicon.ts	Deletes Google favicon constants.
tools/server/webui/src/lib/components/app/settings/SettingsMcpServers.svelte	Adjusts scrolling/layout and lets cards resolve favicons internally.
tools/server/webui/src/lib/components/app/settings/SettingsChat/SettingsChatToolsTab.svelte	Swaps custom favicon rendering for shared MCP identity UI.
tools/server/webui/src/lib/components/app/models/ModelsSelectorSheet.svelte	Tweaks truncated text sizing class usage.
tools/server/webui/src/lib/components/app/misc/TruncatedText.svelte	Adds min-w-0 to improve truncation behavior.
tools/server/webui/src/lib/components/app/mcp/McpServerIdentity.svelte	New shared component for MCP icon/name/version/website rendering.
tools/server/webui/src/lib/components/app/mcp/McpServerCard/McpServerCardHeader.svelte	Replaces inline server identity markup with shared component.
tools/server/webui/src/lib/components/app/mcp/McpServerCard/McpServerCard.svelte	Moves favicon lookup into the card itself.
tools/server/webui/src/lib/components/app/mcp/McpResourcesBrowser/McpResourcesBrowserServerItem.svelte	Reuses shared MCP identity UI in resource browser.
tools/server/webui/src/lib/components/app/mcp/index.ts	Exports the new shared MCP identity component.
tools/server/webui/src/lib/components/app/chat/ChatForm/ChatFormActions/ChatFormActionAdd/ChatFormActionAddMcpServersSubmenu.svelte	Reuses shared MCP identity UI in the add-server submenu.

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