Add Support for Multi-Line Paste

[bmkaiser]

Summary of the new feature / enhancement

When pasting content that has line returns, AI Shell isn't able to accept the entire content as one prompt and breaks it into multiple prompts at each line return. This causes issues when copying and pasting from multiple sources. The only work around I'm aware of this at this time is to remove the line returns before pasting.

Proposed technical implementation details (optional)

Change AI Shell to not interprete line returns as executing a prompt command, which should allow pasting multi-line text blocks.

[daxian-dbw]

I think you were pasting with the mouse right click. Right-click pasting is like typing all the characters one by one to the terminal, and what you observed is the expected behavior in that case.

To paste multi line text in AIShell, please use Ctrl+v.