FEAT #12070 TIME 0:15 add back home button

src/frontend/app/header/header-panel.component.html

src/frontend/app/header/header-panel.component.scss

src/frontend/app/header/header-panel.component.ts

src/frontend/app/indexation/indexation.component.html

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts