refactor: Admin App with better layouts and Meta Information (#7200)

* fix: layout structure in admin

* fix: layout structure in admin

* fix: delete layout files

* chore: updated form related info

* fix: admin import statements

* fix: general page unauthorized flickering issue

* chore: logs related

* chore: lock file updates

* fix: build errors

* fix: coderabbit suggestions

admin/app/(all)/(dashboard)/sidebar-menu.tsx

@@ -0,0 +1,110 @@
+"use client";
+
+import { observer } from "mobx-react";
+import Link from "next/link";
+import { usePathname } from "next/navigation";
+import { Image, BrainCog, Cog, Lock, Mail } from "lucide-react";
+// plane internal packages
+import { Tooltip, WorkspaceIcon } from "@plane/ui";
+import { cn } from "@plane/utils";
+// hooks
+import { useTheme } from "@/hooks/store";
+
+const INSTANCE_ADMIN_LINKS = [
+  {
+    Icon: Cog,
+    name: "General",
+    description: "Identify your instances and get key details.",
+    href: `/general/`,
+  },
+  {
+    Icon: WorkspaceIcon,
+    name: "Workspaces",
+    description: "Manage all workspaces on this instance.",
+    href: `/workspace/`,
+  },
+  {
+    Icon: Mail,
+    name: "Email",
+    description: "Configure your SMTP controls.",
+    href: `/email/`,
+  },
+  {
+    Icon: Lock,
+    name: "Authentication",
+    description: "Configure authentication modes.",
+    href: `/authentication/`,
+  },
+  {
+    Icon: BrainCog,
+    name: "Artificial intelligence",
+    description: "Configure your OpenAI creds.",
+    href: `/ai/`,
+  },
+  {
+    Icon: Image,
+    name: "Images in Plane",
+    description: "Allow third-party image libraries.",
+    href: `/image/`,
+  },
+];
+
+export const AdminSidebarMenu = observer(() => {
+  // store hooks
+  const { isSidebarCollapsed, toggleSidebar } = useTheme();
+  // router
+  const pathName = usePathname();
+
+  const handleItemClick = () => {
+    if (window.innerWidth < 768) {
+      toggleSidebar(!isSidebarCollapsed);
+    }
+  };
+
+  return (
+    <div className="flex h-full w-full flex-col gap-2.5 overflow-y-scroll vertical-scrollbar scrollbar-sm px-4 py-4">
+      {INSTANCE_ADMIN_LINKS.map((item, index) => {
+        const isActive = item.href === pathName || pathName.includes(item.href);
+        return (
+          <Link key={index} href={item.href} onClick={handleItemClick}>
+            <div>
+              <Tooltip tooltipContent={item.name} position="right" className="ml-2" disabled={!isSidebarCollapsed}>
+                <div
+                  className={cn(
+                    `group flex w-full items-center gap-3 rounded-md px-3 py-2 outline-none transition-colors`,
+                    isActive
+                      ? "bg-custom-primary-100/10 text-custom-primary-100"
+                      : "text-custom-sidebar-text-200 hover:bg-custom-sidebar-background-80 focus:bg-custom-sidebar-background-80",
+                    isSidebarCollapsed ? "justify-center" : "w-[260px]"
+                  )}
+                >
+                  {<item.Icon className="h-4 w-4 flex-shrink-0" />}
+                  {!isSidebarCollapsed && (
+                    <div className="w-full ">
+                      <div
+                        className={cn(
+                          `text-sm font-medium transition-colors`,
+                          isActive ? "text-custom-primary-100" : "text-custom-sidebar-text-200"
+                        )}
+                      >
+                        {item.name}
+                      </div>
+                      <div
+                        className={cn(
+                          `text-[10px] transition-colors`,
+                          isActive ? "text-custom-primary-90" : "text-custom-sidebar-text-400"
+                        )}
+                      >
+                        {item.description}
+                      </div>
+                    </div>
+                  )}
+                </div>
+              </Tooltip>
+            </div>
+          </Link>
+        );
+      })}
+    </div>
+  );
+});