fix dnd + some css

src/app/note/controllers/NoteController.php

src/frontend/app/actions/actions-list.component.ts

...pp/actions/redirect-action/redirect-action.component.html

.../app/actions/redirect-action/redirect-action.component.ts

src/frontend/app/diffusions/diffusions-list.component.html

src/frontend/app/diffusions/diffusions-list.component.ts

src/frontend/app/notes/note-editor.component.html

src/frontend/app/notes/note-editor.component.scss

src/frontend/css/engine.scss

src/frontend/css/maarch-material-modal.scss

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts