[BUG] Too much blank space at bottom of terminal

Environment

• Platform (select one):
• [X] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.57 <!-- output of claude --version -->
• Operating System: macOS & Linux (Arch) <!-- e.g. macOS 14.3, Windows 11, Ubuntu 22.04 -->
• Terminal: Kitty (OSX & Linux), Emacs VTerm (OSX & Linux) <!-- e.g. iTerm2, Terminal App -->

Bug Description

<!-- A clear and concise description of the bug -->
There is too much blank space left below the prompt.

Steps to Reproduce

1. Open Claude CLI
2. Get Claude to respond with enough output such that it starts scrolling input

Expected Behavior

There should not be 3-4 blank lines under the prompt box.

Actual Behavior

There are 3-4 blank lines under the prompt box.

You can see this in the Gif from the repo readme: https://github.com/anthropics/claude-code/blob/main/demo.gif

For tall terminals this might not be an issue. But for a horizontal terminal in your text editor (ex., the default terminal on VSCode) this takes up almost half the terminal height.

This blank space also doesn't go away if you type multiple new lines into your prompt. Instead this eats at the space above the prompt box.
<!-- What actually happened -->

Additional Context

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