Fix classification creation button

vue/Element/DetailsPanel.vue

@@ -25,7 +25,7 @@
             </p>
             <p class="control">
               <button
-                type="button"
+                type="submit"
                 class="button is-primary"
                 :class="{ 'is-loading': isSavingNewClassification }"
                 :disabled="!canCreateClassification"