Revert last commit

Author: RubenBlazquez

app/packs/stylesheets/decidim/stratified_sortitions/admin/stratified_sortitions.scss

@@ -10,6 +10,10 @@
   }
 }
 
+.import-sample-btn {
+  white-space: nowrap;
+}
+
 .example-file-census-container {
   padding:1em;
   background:#e2e5ee;

app/views/decidim/stratified_sortitions/admin/stratified_sortitions/edit.html.erb

@@ -4,9 +4,10 @@
     <%= t(".title") %>
   </h1>
   <div class="flex items-center gap-x-4">
-    <%= link_to t("actions.upload_sample", scope: "decidim.stratified_sortitions.admin"),
+    <%= button_to t("actions.upload_sample", scope: "decidim.stratified_sortitions.admin"),
         upload_sample_stratified_sortition_path(stratified_sortition),
-        class: "button button__sm button__secondary" %>
+        class: "button button__sm button__secondary import-sample-btn",
+        disabled: stratified_sortition.strata.empty? %>
   </div>
 </div>
 <div class="item__edit item__edit-1col">