Release v0.2.4

• Settings: Simplified built-in UI language support to English and Chinese while we focus translation quality for actively maintained locales. (@isomoes)
• Settings: Added a GitHub Dark Colorblind theme preset to improve high-contrast readability for colorblind-friendly workflows. (@isomoes)
• Chat: Model picker now shows a Recent group with your last-used models at the top for faster reselection. (@isomoes)
• Chat: Pressing Escape no longer interrupts active responses, preserving Vim-style focus behavior and reducing accidental stops. (@isomoes)
• Chat: Standardized stop-response behavior around Ctrl/Cmd + C so interruption shortcuts are more predictable while composing. (@isomoes)
• Dev Experience: Removed the web Playwright end-to-end test suite and related setup to keep the package focused on unit-test workflows. (@isomoes)