Fixed: Edit Button not Appearing After Experiment Publication

Now that we handle this button state by asking the backend whether a user has permission for a certain
action, it doesn't make sense to base the div component's visibility off the publication date of the
experiment. Make the div visible always, and control the button visibility conditionally based on
backend responses.

src/components/screens/ExperimentView.vue

@@ -5,14 +5,11 @@
         <div class="mave-screen-title-bar">
           <div class="mave-screen-title">{{ item.title || 'Untitled experiment' }}</div>
           <div v-if="userIsAuthenticated">
-            <div v-if="!item.publishedDate" class="mave-screen-title-controls">
+            <div class="mave-screen-title-controls">
               <Button v-if="userIsAuthorized.add_score_set" class="p-button-sm" @click="addScoreSet">Add a score set</Button>
               <Button v-if="userIsAuthorized.update" class="p-button-sm" @click="editItem">Edit</Button>
               <Button v-if="userIsAuthorized.delete" class="p-button-sm p-button-danger" @click="deleteItem">Delete</Button>
             </div>
-            <div v-else>
-              <Button v-if="userIsAuthorized.add_score_set" class="p-button-sm" @click="addScoreSet">Add a score set</Button>
-            </div>
           </div>
         </div>
         <div v-if="item.shortDescription" class="mave-score-set-description">{{ item.shortDescription }}</div>