feat(pkg-r): Rich tools

[gadenbuie]

Fixes #62

Uses rich tools with the latest version of shinychat. Includes an "Apply Filter" button that is shown in the update dashboard tool results so that you can go back and apply previous filters.

Also refactors the tools into separate files for better organization

[Copilot]

Pull Request Overview

This PR implements rich tools functionality for the querychat package using the latest version of shinychat. It adds an "Apply Filter" button that allows users to reapply previous filters from tool results, enhancing the user experience for working with data queries.

Key changes include:

• Refactored tool implementations into separate files for better code organization
• Added rich tool annotations with icons and better UI presentation
• Implemented JavaScript functionality for the "Apply Filter" button interaction

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pkg-r/inst/htmldep/querychat.js	Adds JavaScript event handling for the "Apply Filter" button functionality
pkg-r/R/querychat_tools.R	New file containing refactored tool implementations with rich annotations
pkg-r/R/querychat.R	Updated to use new tool structure and proper HTML dependencies
pkg-r/NEWS.md	Documents the new rich tools feature
pkg-r/DESCRIPTION	Updates shinychat dependency and adds remote repository

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