Various improvements

libs/ui/src/lib/no-activities-info/no-activities-info.component.html

@@ -2,12 +2,14 @@
   <div class="d-flex justify-content-center mb-1">
     <gf-logo size="large" [showLabel]="false" />
   </div>
+  <div class="d-flex justify-content-center">
     <a
-    class="align-items-center justify-content-center"
+      class="align-items-center d-inline-flex justify-content-center"
       color="primary"
       mat-button
       [routerLink]="routerLinkPortfolioActivitiesCreate"
     >
-    <span i18n>Time to add your first activity.</span>
+      <span i18n>Add your first activity</span>
     </a>
+  </div>
 </div>