Fix locale discrepancy for extend desc feature

src/invidious/views/preferences.ecr

@@ -107,7 +107,7 @@
             </div>
 
             <div class="pure-control-group">
-                <label for="extend_desc"><%= translate(locale, "Automatically extend video descriptions: ") %></label>
+                <label for="extend_desc"><%= translate(locale, "Automatically extend video description: ") %></label>
                 <input name="extend_desc" id="extend_desc" type="checkbox" <% if preferences.extend_desc %>checked<% end %>>
             </div>