Icons for agent mode

[mrleemurray]

Currently agents support 4 modes:

• agent (default)
• ask
• edit
• plan

These are the icons currently used in context - a dropdown menu in the chat input:

@davidhosejr can you please take a look at these icons & suggest / create alternatives that might better fit?

[davidhosejr]

@mrleemurray

Here are some initial ideas: