[FEATURE] Add AI Chatbots (Claude, ChatGPT, Copilot, etc.) to Search Bar Options

Describe the feature

Currently, the Lawnchair search bar configuration allows users to select from a set of traditional search engines (Google, DuckDuckGo, Firefox, etc.), but there is no support for AI chatbot assistants as search/query targets. What I'm suggesting is to add popular AI chatbots — such as Claude (Anthropic), ChatGPT (OpenAI), Microsoft Copilot, Gemini (Google), and Perplexity — as selectable options in the search bar settings.

When a user types a query in the Lawnchair search bar and has an AI chatbot selected, it should open the corresponding app (if installed) or the web interface with the query pre-filled, just as it currently does for traditional search engines.

Why would it be useful to add?

AI chatbots are increasingly being used as a primary way to look up information, get answers, and explore topics — often replacing traditional search engines for many users. Right now, users who prefer AI assistants over conventional search have no native way to route their Lawnchair search bar queries to these tools. They are forced to either use a browser shortcut workaround or manually open the app separately. Adding first-class support for AI chatbots would bring Lawnchair in line with modern usage patterns and give power users a much more seamless experience.

Did the feature exist in Lawnchair Legacy?

No

Example(s)

Suggested AI chatbot options to include (with their respective app package names / web URLs as fallback):

Assistant	Developer	App / URL
Claude	Anthropic	claude.ai
ChatGPT	OpenAI	chat.openai.com
Microsoft Copilot	Microsoft	copilot.microsoft.com
Gemini	Google	gemini.google.com
Perplexity	Perplexity AI	perplexity.ai

Behavior: if the corresponding app is installed, open it with the query; otherwise fall back to the web URL.

Additional context

This could potentially be implemented similarly to how custom/website-based search providers already work in Lawnchair, using query URL patterns (e.g., https://claude.ai/new?q={query}). A dedicated "AI Assistants" subsection within the search provider settings could help keep the list organized as AI tools continue to grow in popularity.

Relationship to existing issues

I'm aware that #4577 requests a general custom search provider option via %s URLs, which would technically allow power users to add AI chatbots manually. However, this request is intentionally different — the goal is to have AI chatbots surfaced as named, built-in options in the search provider list, the same way Firefox or DuckDuckGo are today. The distinction matters for a few reasons: Discoverability — most users won't know to configure a custom URL; built-in options are immediately visible and usable. App-launch intent support — a simple URL workaround opens the browser, whereas a native integration could detect whether the AI's app is installed and launch it directly with the query, providing a far smoother experience. Maintenance — having Lawnchair manage these entries ensures they stay accurate if URLs or app packages change over time. This isn't a duplicate of #4577, but rather a complementary and more specific request targeting a fast-growing category of search tools that many users now rely on daily.

Disclaimer: most of the above content was generated with Claude chatbot