Fix answer box bug

Fix bug of too long words.

searx/static/themes/simple/src/less/style.less

@@ -540,6 +540,10 @@ article[data-vim-selected].category-social {
   h4 {
     display: none;
   }
+
+  span {
+    overflow-wrap: anywhere;
+  }
 }
 
 #infoboxes {