Transparent windows require platform-specific workarounds (WebView2 on
Windows, compositor support on Linux) and don't work on mobile. Use an
opaque window instead, removing the outer padding, rounded corners, and
drop shadow that depended on transparency.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Remove native window decorations and add transparent background with
rounded corners, border, and drop shadow. Add custom close button
(Linux) and minimize/maximize/close (Windows) in the header. Add
programmatic window dragging via mousedown and double-click to maximize.
Install tauri-plugin-os for platform detection. Move sync spinner to
bottom-right corner. Convert drawer layout from vw to cqi units to
support the padding-based shadow approach.