Feat(searchResults): Add page descriptions

src/app/carto/carto.component.ts

src/app/contact/contact.component.ts

src/app/form/orientation-form/orientation-form.component.ts

src/app/legal-notice/legal-notice.component.ts

src/app/page/models/page.model.ts

src/app/page/page.component.ts

src/index.html