Update licenses

src/invidious/views/licenses.ecr

@@ -65,6 +65,20 @@
             </td>
         </tr>
 
+        <tr>
+            <td>
+                <a href="/js/themes.js?v=<%= ASSET_COMMIT %>">themes.js</a>
+            </td>
+
+            <td>
+                <a href="https://www.gnu.org/licenses/agpl-3.0.html">AGPL-3.0</a>
+            </td>
+
+            <td>
+                <a href="/js/themes.js?v=<%= ASSET_COMMIT %>"><%= translate(locale, "source") %></a>
+            </td>
+        </tr>
+
         <tr>
             <td>
                 <a href="/js/videojs-contrib-quality-levels.min.js?v=<%= ASSET_COMMIT %>">videojs-contrib-quality-levels.min.js</a>