fix: performance

public/index.html

public/logo192.png

public/logo512.png

public/manifest.json

src/App.js

src/assets/curves/courbe_1_s.png

src/assets/curves/courbe_1_sm.png

src/assets/curves/courbe_2_s.png

src/assets/curves/courbe_2_sm.png

src/assets/curves/courbe_3_s.png

src/assets/curves/courbe_3_sm.png

src/assets/curves/courbe_4_s.png

src/assets/curves/courbe_4_sm.png

src/assets/main/nuage_icones_s.png

src/assets/main/nuage_icones_sm.png

src/assets/main/poulpe_ludique_big_s.png

src/assets/main/poulpe_ludique_version_mobile_s.png

src/index.js

src/index.scss

src/js/components/TopBar/TopBar.js