Change the icons for button connection. Responsive.

src/app/core/components/main/header/header.component.html

src/app/core/components/main/header/header.component.scss

...p/core/components/main/side-menu/side-menu.component.scss

src/app/editorialisation/components/home/home.component.scss

...ents/results/result-dataset/result-dataset.component.scss

...components/results/result-post/result-post.component.scss

src/environments/environment.ts

src/i18n/messages.en.xlf

src/i18n/messages.fr.xlf