Add HTTP content-type for WebP and AVIF#229

mathieucarbou merged 3 commits intoESP32Async:mainESP32Async/ESPAsyncWebServer:mainfrom

JosePineiro:feature/http-content-type-webp-avifJosePineiro/ESPAsyncWebServer:feature/http-content-type-webp-avifCopy head branch name to clipboard