fix Partners options, Hero & Image size

src/components/Hero.tsx

src/components/Partners.tsx

src/components/core/Carousel.tsx

src/components/core/Image.tsx

src/images/400x400.png

src/images/400x800.png

src/images/800x400.png

src/images/80x80.png

src/pages-doc/doc/core/index.tsx

src/pages-doc/doc/hero.tsx

src/pages-doc/doc/partners.tsx