Don't close dropdown when selecting loaders (#632)

pages/_type/_id/version.vue

@@ -228,7 +228,7 @@
               :multiple="true"
               :searchable="false"
               :show-no-results="false"
-              :close-on-select="true"
+              :close-on-select="false"
               :clear-on-select="false"
               :show-labels="false"
               :limit="6"

pages/create/project.vue

@@ -452,7 +452,7 @@
                 :multiple="true"
                 :searchable="false"
                 :show-no-results="false"
-                :close-on-select="true"
+                :close-on-select="false"
                 :clear-on-select="false"
                 :show-labels="false"
                 :limit="6"