FEAT #12869 TIME 0:35 add var lang + search adv

...app/adv-search/criteria-tool/criteria-tool.component.html

...app/adv-search/criteria-tool/criteria-tool.component.scss

...d/app/adv-search/criteria-tool/criteria-tool.component.ts

...ontend/app/adv-search/list/search-adv-list.component.html

...urce/linkResourceModal/link-resource-modal.component.html

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts