[Feature] 设置对话框 发送 快捷键 回车键可配置 修改为 crtl+回车

[goly1234]

Affected area

Desktop UI (agent-gui / React)

Problem statement (what should this solve)

建议1： 设置对话框 发送 快捷键 回车键可配置 修改为 crtl+回车
建议2：在对话框 点击右上角的放大时，窗口可高度调节，或者说不用放大按钮，直接就是对话框口可自由调节

Proposed behavior

无

Estimated change scope

No response

Alternatives considered

No response

Pre-submit checklist

• I searched existing issues and pull requests and found no duplicates.
• This proposal is focused on a single feature or improvement.
• I understand a PR should come after this issue is confirmed by maintainers, otherwise it will be converted to draft.