Set Prettier's "trailingComma" setting to "es5" GitOrigin-RevId: 9f14150511929a855b27467ad17be6ab262fe5d5
chat-context
* Added toggle chat button to navigation header * new `useBrowserWindow` hook to work with browser title and focus * react2angular chat toggle button plumbing GitOrigin-RevId: 4380f1db9c7cc9a25bfb8d7a33e18d61b1d32993