- Added support for specifying response headers for each backend
- Allowing users to set `X-Accel-Buffering: no` to disable buffering for streaming responses in nginx
- Updated `configuration.md` to document the new configuration options
- Modified Vite config to build with `base: "./"`, making assets be accessed via relative paths
- Updated API_BASE to use `document.baseURI`, allowing API calls to be made relative to the base path
