[FEATURE] Distinguish Keyboard Shortcuts better

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Claude Code shows the hint: "Tip: Press Esc twice to rewind the conversation to a previous point in time"
Since Claude Code get's frozen or stuck sometimes, while it is working, the normal Esc key is already mapped to cancellation of a task, the double Esc is a bad choice of shortcut. When it's frozen, the user will press Esc multiple times. The only thing that would be acceptable is quick clearing of the text input box, but also not if it is frozen. But rewinding the conversation should be assigned to a specific shortcut, with no duplicated shortcut usage.
Another bad example is the feedback collection, because it uses keys the user will press regularly as 1 2 3 are important keys for Claude Code usage:
● How is Claude doing this session? (optional)
1: Bad 2: Fine 3: Good 0: Dismiss

Proposed Solution

Introduce a new shortcut. The keyboard has many keys. No need to use Esc or numbers 1-4 all the time for different purposes.

Alternative Solutions

_No response_

Priority

Low - Nice to have

Feature Category

Interactive mode (TUI)

Use Case Example

See above.

Additional Context

_No response_