(sideload) Just index based on first paragraph

This seems like it would make the wikipedia search result worse, but it drastically improves the result quality!

This is because wikipedia has a lot of articles that each talk about a lot of irrelevant concepts, and indexing the entire document means tangentially relevant results tend to displace the most relevant results.

code/processes/converting-process/src/main/java/nu/marginalia/converting/sideload/encyclopedia/EncyclopediaMarginaliaNuSideloader.java

@@ -120,6 +120,7 @@ public class EncyclopediaMarginaliaNuSideloader implements SideloadSource, AutoC
             fullHtml.append("<p>");
             fullHtml.append(part);
             fullHtml.append("</p>");
+            break; // Only take the first part, this improves accuracy a lot
         }
         fullHtml.append("</div></body></html>");