Reapply "Add missing admin action files and navigation links"

This reverts commit 4d515bc400.

src/components/mobile-nav.tsx

@@ -23,7 +23,15 @@ export function MobileNav({ children, menuLabel = "Open menu", closeLabel = "Clo
         aria-controls="mobile-menu"
         aria-label={open ? closeLabel : menuLabel}
       >
-        <svg className="w-5 h-5" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+        <svg
+          className="w-5 h-5"
+          viewBox="0 0 24 24"
+          fill="none"
+          stroke="currentColor"
+          strokeWidth="2"
+          strokeLinecap="round"
+          strokeLinejoin="round"
+        >
           {open ? (
             <>
               <line x1="18" y1="6" x2="6" y2="18" />
@@ -69,4 +77,4 @@ export function MobileNav({ children, menuLabel = "Open menu", closeLabel = "Clo
       </div>
     </>
   );
-}
+}