The AI module supports file uploads

[zhouyu123666]

Support file upload and reading of file content, and then send it to the AI large model for conversation.

[zhouyu123666]

The chaterm v0.3.1 version has resolved this issue.
https://github.com/chaterm/Chaterm/releases/tag/v0.3.1

[zhouyu123666]