Revert admin sidebar toggle, fix hamburger position directly

src/components/admin/admin-sidebar-toggle.tsx

@@ -1,47 +0,0 @@
-"use client";
-
-import { useState, useEffect, type ReactNode } from "react";
-import { Menu, X } from "lucide-react";
-
-export function AdminSidebarToggle({ children }: { children: ReactNode }) {
-  const [open, setOpen] = useState(false);
-
-  useEffect(() => {
-    if (!open) return;
-    function handleKey(e: KeyboardEvent) {
-      if (e.key === "Escape") setOpen(false);
-    }
-    document.addEventListener("keydown", handleKey);
-    return () => document.removeEventListener("keydown", handleKey);
-  }, [open]);
-
-  return (
-    <>
-      <button
-        type="button"
-        onClick={() => setOpen(!open)}
-        className="lg:hidden flex items-center justify-center w-9 h-9 rounded-lg transition-colors duration-150 mr-2"
-        style={{ color: "var(--admin-text-muted)" }}
-        aria-label={open ? "Close sidebar" : "Open sidebar"}
-      >
-        {open ? <X size={18} /> : <Menu size={18} />}
-      </button>
-
-      {open && (
-        <div
-          className="fixed inset-0 z-40 lg:hidden"
-          style={{ backgroundColor: "rgba(0,0,0,0.5)" }}
-          onClick={() => setOpen(false)}
-        />
-      )}
-
-      <div
-        className={`fixed inset-y-0 left-0 z-50 w-[260px] transform transition-transform duration-300 ease-in-out lg:!translate-x-0 lg:!relative lg:!inset-auto ${
-          open ? "translate-x-0" : "-translate-x-full"
-        }`}
-      >
-        {children}
-      </div>
-    </>
-  );
-}