correct badge for pending files number

pages/previsions/index.vue

@@ -9,7 +9,7 @@
 				<h2 class="text-center my-5 font-weight-light">
 					{{ $t("previsions.title") }}
 					<small
-						><span class="badge badge-secondary">{{
+						><span class="badge bg-secondary">{{
 							$tc("dossier.attente", wwResult.dossiers_nb)
 						}}</span></small
 					>