Release v0.1.4

• Command Palette: Changed the main shortcut from Cmd/Ctrl + K to Cmd/Ctrl + P and updated shortcut hints in Help to match. (thanks to @Isomo)
• Chat: Added Vim-style keyboard scrolling with j/k for line movement and d/u (plus Ctrl + d/Ctrl + u) for half-page movement in scrollable chat and diff views. (thanks to @Isomo)
• Chat: Improved pin-to-bottom behavior so scrolling upward consistently unpins the view and prevents jump-to-bottom interruptions while new output streams in. (thanks to @Isomo)
• Settings: Streamlined built-in theme presets and kept a focused Dark Colorblind High Contrast preset as the bundled option. (thanks to @Isomo)
• Docs: Refreshed the README intro and Quick Start section with install and common usage examples to make first-run setup faster. (thanks to @Isomo)