ENH: Reset the cursor to text cursor in the tour.

src/core/css/tour.css

@@ -250,3 +250,8 @@ div.caosdb-v-tour-toc-show {
 .caosdb-v-tour-toc-active-item.caosdb-v-tour-toc-cur {
     border: none;
 }
+
+/* For elements in popovers which are not for clicking but only illustrative. */
+.caosdb-v-tour-unclickable {
+    cursor: text !important;
+}