1289: Finalize initial version of item view

Task-Url: https://pm.winseda.de/issues/1289

css/application-gs.css

@@ -267,20 +267,20 @@
   margin-bottom: 0; }
 #item-detail-container #item-detail-resource {
   font-size: 2rem; }
-#item-detail-container #item-detail-dataset-container {
+#item-detail-container .item-dataset-container {
   overflow: auto;
   font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
   color: #333333;
   font-size: 0.875rem;
   padding: 12px;
   margin-bottom: 24px; }
-  #item-detail-container #item-detail-dataset-container ul {
+  #item-detail-container .item-dataset-container ul {
     padding-left: 15px;
     list-style-type: none; }
-    #item-detail-container #item-detail-dataset-container ul li {
+    #item-detail-container .item-dataset-container ul li {
       position: relative;
       margin-top: 0.2rem; }
-      #item-detail-container #item-detail-dataset-container ul li:before {
+      #item-detail-container .item-dataset-container ul li:before {
         content: " ";
         display: inline-block;
         position: absolute;
@@ -293,17 +293,17 @@
         border-top: 5px solid transparent;
         border-bottom: 5px solid transparent;
         border-left: 5px solid #333333; }
-      #item-detail-container #item-detail-dataset-container ul li .btn-inline {
+      #item-detail-container .item-dataset-container ul li .btn-inline {
         padding: 0 0.5rem; }
-      #item-detail-container #item-detail-dataset-container ul li .sample-output-value-expanded .fa-plus-square {
+      #item-detail-container .item-dataset-container ul li .sample-output-value-expanded .fa-plus-square {
         display: none; }
-      #item-detail-container #item-detail-dataset-container ul li .sample-output-value-expanded .fa-minus-square {
+      #item-detail-container .item-dataset-container ul li .sample-output-value-expanded .fa-minus-square {
         display: inline; }
-      #item-detail-container #item-detail-dataset-container ul li .sample-output-value-collapsed .fa-plus-square {
+      #item-detail-container .item-dataset-container ul li .sample-output-value-collapsed .fa-plus-square {
         display: inline; }
-      #item-detail-container #item-detail-dataset-container ul li .sample-output-value-collapsed .fa-minus-square {
+      #item-detail-container .item-dataset-container ul li .sample-output-value-collapsed .fa-minus-square {
         display: none; }
-    #item-detail-container #item-detail-dataset-container ul .sample-output-key {
+    #item-detail-container .item-dataset-container ul .sample-output-key {
       font-style: italic;
       font-weight: bold; }
 #item-detail-container #item-images {