R-shell

### 🔧 R-Shell 3.0.3 — Settings Refresh & macOS Monitor Fixes

This patch release ships a completely redesigned Settings experience with a self-service keyboard-shortcut editor, fixes macOS system-monitor readings (memory, CPU, and network bandwidth), and stops hidden sidebar panels from doing background work. Dependency maintenance is also included: all 12 outdated major-dependency versions were refreshed or migrated.

### New Features 🎉

- feat(settings): ZCode-style settings + self-service keybinding editor by @GOODBOY008 in #204

### Bug Fixes 🐛

- fix(sidebar): mount sidebar tab panels lazily and stop work while hidden by @sunxiaobin89 in #193
- fix(monitor): correct macOS memory/CPU readings and network bandwidth by @sunxiaobin89 in #192

### Other Changes

- chore(deps): refresh compatible deps and migrate all 12 outdated major versions by @GOODBOY008 in #201
- test: give the file-browser keyboard file a real async-wait budget by @sunxiaobin89 in #197

### Contributors

Thanks to [@GOODBOY008](https://github.com/GOODBOY008) and [@sunxiaobin89](https://github.com/sunxiaobin89) for contributing to this release! 🙏

**Full Changelog**: https://github.com/GOODBOY008/r-shell/compar