chore: move inline chat stuff around

[jrieken]

No description provided.

[Copilot]

Pull request overview

This PR reorganizes inline chat (inlineChat2) prompt-related code by updating imports to point at the consolidated prompts/node/* prompt elements and by colocating the progress-messages prompt with its consumer.

Changes:

• Update inlineChat2 progress-messages prompt imports to use the shared prompt-element implementations under extensions/copilot/src/extension/prompts/node/*.
• Switch inlineChat2 progress-messages logic to import its prompt from a local progressMessagesPrompt.tsx module (instead of the removed/relocated prompts/node/inline/progressMessages).
• Remove an unused ICodeContextInfo type (and its now-unused imports) from inline chat prompt crafting types.

Show a summary per file

File	Description
extensions/copilot/src/extension/inlineChat2/node/progressMessagesPrompt.tsx	Repoint prompt-element imports to shared prompts/node/* locations.
extensions/copilot/src/extension/inlineChat2/node/progressMessages.ts	Update prompt import to local ./progressMessagesPrompt.
extensions/copilot/src/extension/inlineChat2/node/inlineChatIntent.ts	Update progress-messages provider import to local ./progressMessages.
extensions/copilot/src/extension/inlineChat/node/promptCraftingTypes.ts	Remove unused ICodeContextInfo and associated imports.

Copilot's findings

• Files reviewed: 4/4 changed files
• Comments generated: 0