Tool UI improvements

[tevanburen]

Description

Improvements to the UI for tool calls

Changes Made

• Auto-executing tools will wait until all previous tools have run
• Typing / to grab MCPs will work for non-project engines
• Add a loading spinner to auto-executing tools
• Disable the room input when tools have yet to be completed, and show users a tooltip
• Allow cancellation during auto-execute

How to Test

• Have access to Tool A (ask), Tool B (ask), and Tool C (auto that takes a while to run)
• In a new chat, prompt for Tool A, Tool B, and Tool C
• Verify that while the tools have not yet been completed, users can not ask new messages
• Run Tool B
• Verify that Tool C does not automatically run after Tool B
• Run Tool A
• Verify that Tool C does automatically run after Tool A
• Verify that while Tool C is running, a loading message appears in its box, but not the main loading message
• While Tool C is running, click "cancel". Verify that when the original RunMCPTool pixel call returns, nothing happens

[github-actions]

@CodiumAI-Agent /update_changelog