chore: add data-optimizable="true" attribute on optimizable <style>

source/templates/classic/partials/skyline.ejs

@@ -23,7 +23,7 @@
               </div>
             </div>
             <% { const n = plugins.skyline.animation.length, width = plugins.skyline.width, height = plugins.skyline.height %>
-              <style>
+              <style data-optimizable="true">
                 @keyframes skyline-animation-frame {
                   100% { transform: translateX(-100%); }
                 }

source/templates/classic/partials/stackoverflow.ejs

@@ -41,7 +41,7 @@
         </section>
       </div>
       <% if (plugins.stackoverflow.lines) { %>
-        <style>
+        <style data-optimizable="true">
           .stackoverflow .body {
             display: -webkit-box;
             -webkit-box-orient: vertical;