Refactor _results_section.html.erb to add margin-bottom to parsed pre…

…dictions

This commit modifies the _results_section.html.erb file to add a margin-bottom style to the <pre> element that displays the parsed predictions. This change improves the visual separation between each prediction, making it easier to read and understand.

Related to recent code changes that updated the _results_section.html.erb file in the Leva workbench view. Also aligns with recent repository commits that refactored the Leva module and the RunnerResult class to improve parsed predictions extraction.

app/views/leva/workbench/_results_section.html.erb

@@ -52,7 +52,7 @@
         <div>
           <h4 class="text-xs font-semibold text-indigo-200 my-2 gap-2">Parsed Predictions:  <%= runner_result.dataset_record.recordable.extract_regex_pattern.to_s %></h4>
           <% runner_result.parsed_predictions.each do |prediction| %>
-            <pre class="text-sm text-gray-300 whitespace-pre-wrap bg-gray-700 p-2 rounded"><%= prediction %></pre>
+            <pre class="text-sm text-gray-300 whitespace-pre-wrap bg-gray-700 p-2 rounded mb-2"><%= prediction %></pre>
           <% end %>
         </div>
       <% end %>