Add ability to reorder, edit, or remove queued prompts

Feature Request

Problem:
When submitting multiple prompts while Claude is processing, they get queued in submission order. Currently there is no way to reorder, edit, or remove individual queued prompts — the only option is to cancel everything with Ctrl+C and re-submit.

Proposed Solution:
Add queue management controls that allow users to:

• Reorder queued prompts (e.g., drag-and-drop or keyboard shortcuts to move items up/down)
• Remove individual queued prompts without canceling the current generation
• Edit a queued prompt before it gets processed

Use Case:
When working on complex, multi-step tasks, it's common to queue several follow-up prompts. If priorities change mid-stream or you realize a prompt should run earlier/later, you currently have to cancel everything and start over. This is disruptive, especially if the current generation is nearly complete.

Current Workaround:
Press Ctrl+C to cancel the current generation and clear the queue, then re-submit prompts in the desired order.