chore(services): update components based on recent changes

Changes:
 services/frontend/src/widgets/Sidebar.tsx | 51 +++++++++++++++++++++++++-------------------------
 1 file changed, 25 insertions(+), 26 deletions(-)

services/frontend/src/widgets/Sidebar.tsx

@@ -74,7 +74,8 @@ export function Sidebar({
           )}
         </div>
 
-        {/* Navigation items */}
+        {/* Navigation items — centered vertically */}
+        <div className="flex flex-1 flex-col justify-center">
           <div className="flex flex-col gap-1 px-2">
             {navItems.map((item) => {
               const Icon = item.icon;
@@ -98,9 +99,7 @@ export function Sidebar({
               );
             })}
           </div>
-
-        {/* Spacer pushes mascot to bottom */}
-        <div className="flex-1" />
+        </div>
 
         {/* Mascot button */}
         <div className="flex justify-center pb-4">