feat: enhance alt-tab selection with bold font rendering
refactor: simplify title bar color logic to use focused/unfocused states
perf: increase focus animation duration for smoother transitions
refactor: update build dependencies for decorations and workspace modules
build: enhance security with stricter compiler flags and sanitizer build
refactor: replace standard memory functions with custom dwn_ variants
chore: remove unused wifi and dropdown menu code from systray
feat: implement demo mode for automated feature showcase
feat: add XEmbed system tray protocol for external application icons
feat: add window snapping to left and right halves
feat: add minimize/restore toggle with Alt+F9 keybinding
docs: update README with new features and configuration details
build: update build system for new autostart and demo modules
