Add native spellcheck support to the chat input box in the VS Code extension

[CaptainCobi]

Preflight Checklist

• I have searched existing requests and this feature hasn't been requested yet
• This is a single feature request (not multiple features)

Problem Statement

A spell check would help to avoid misunderstandings.

Proposed Solution

UNderlining mispelled words in the chat-box

Alternative Solutions

No response

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

No response

Additional Context

No response