Reorganize sidebar into content area

Author: NovaDev404

web/index.html

@@ -14,10 +14,14 @@
         </div>
       </div>
 
-      <div class="sidebar">
-        <div class="sidebar-item">ProStore Installer</div>
-        <div class="sidebar-item">Certificate Manager & Status</div>
-        <div class="sidebar-item">Certificate Converter</div>
+      <div class="content-area">
+        <div class="sidebar">
+          <div class="sidebar-item">ProStore Installer</div>
+          <div class="sidebar-item">Certificate Manager & Status</div>
+          <div class="sidebar-item">Certificate Converter</div>
+        </div>
+
+        <div class="panel"></div>
       </div>
     </main>
   </body>