electerm

### New features/UI/Updates

- New setting: mouse events require Alt key, off by default, plain drags stay local text selection while the wheel still scrolls tmux/vim history
- UX: Support press and hold to repeat a key on the touch shortcut bar

### Bug fixes

- Fix .vv file not opening when electerm is already running, double clicking a .vv file only brought the window to the front
- Fix extra empty lines in the session log when a line ending arrives split across chunks or as a doubled `rrn` (#4563) by @developerjillur
- Fix shell integration script on OpenWrt, the injected prompt failed with `__e_ps1: not found` on every prompt of a nested shell
- Security: Fix unsafe path resolve in remote to remote file transfer, a crafted remote file name could be written outside the destination directory
- Security: Fix unsafe command execution from deep link and quick connect opts, dangerous session fields such as a pre-connect proxy command can no longer be set from an untrusted link

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### 新功能/界面/更新

- 新增设置：鼠标事件需要按下 Alt 键（默认关闭），普通拖动仍为本地文本选择，滚轮仍可滚动 tmux/vim 历史
- 体验：触屏快捷栏支持长按连续发送按键

### 问题修复

- 修复 electerm 已在运行时 .vv 文件无法打开的问题，双击 .vv 文件只会把窗口切到前台
- 修复会话日志中出现多余空行