Allow status line and accept-edits bar to share a single line

Question

## Problem

The custom status line and the "accept edits on (shift+tab to cycle)" bar each take up a separate line at the bottom of the terminal. On smaller screens or when vertical space is at a premium, this eats into the visible conversation area.

## Request

Allow combining the status line content and the accept-edits indicator into a single line, e.g.:

```
📁 ~/project  |  🌿 master  |  ± 0    ▸▸ accept edits on (shift+tab to cycle)
```

A setting like `statusLine.compact: true` or simila