Update styles for mass actions

Author: niksy

documentation/changelog.md

@@ -2,6 +2,7 @@
 
 ## 0.82.0
 * Use proper close icon reference
+* Add style presentation as buttton for mass action with only one option
 
 ## 0.81.0
 * Switch to Sass modules system

src/js/components/massActions.vue

@@ -5,7 +5,7 @@
         :class="{
             activeDropdown: selectedModelsOpened,
             withSelection: selectedModels.length,
-            singleAction: hasSingleAction
+            withSingleAction: hasSingleAction
         }"
         v-on-dismiss="{
             callback: closeSelectedModels,
@@ -410,7 +410,7 @@ export default {
 
             }
 
-            &.singleAction {
+            &.withSingleAction {
 
                 .selectCont {
                     display: none;