correction affichage des labels dans les annotations partagées (env datation)

adim_project/templates/adim/env/anodate/annotation.html

@@ -303,9 +303,9 @@
 <div id="alt-side-col-panel-group" class="p-1 w-50 panel-group" style="margin-right:0;padding-right:0;display:none;">
 
     <div id="shared-annotation-markers-panel" style="display: none;">
-        <a class="btn btn-secondary btn-sm btn-block" data-toggle="collapse" href="#collapseSharedMarkers" role="button"
+        <a class="btn btn-secondary btn-sm btn-block d-inline-flex" data-toggle="collapse" href="#collapseSharedMarkers" role="button"
            aria-expanded="false" aria-controls="collapseSharedMarkers">
-            Labels <i class="icon-circleright float-sm-right"></i>
+            <div>Labels</div> <i class="icon-circleright ml-auto"></i>
         </a>
 
         <div class="collapse show panel-dark show" id="collapseSharedMarkers">