feat: init

apps/web/ce/components/pages/navigation-pane/tab-panels/assets.tsx

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+// plane imports
+import type { TEditorAsset } from "@plane/editor";
+// store
+import type { TPageInstance } from "@/store/pages/base-page";
+
+export type TAdditionalPageNavigationPaneAssetItemProps = {
+  asset: TEditorAsset;
+  assetSrc: string;
+  assetDownloadSrc: string;
+  page: TPageInstance;
+};
+
+export const AdditionalPageNavigationPaneAssetItem: React.FC<TAdditionalPageNavigationPaneAssetItemProps> = () => null;

apps/web/ce/components/pages/navigation-pane/tab-panels/empty-states/assets.tsx

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+import Image from "next/image";
+// plane imports
+import { useTranslation } from "@plane/i18n";
+// hooks
+import { useResolvedAssetPath } from "@/hooks/use-resolved-asset-path";
+
+export const PageNavigationPaneAssetsTabEmptyState = () => {
+  // asset resolved path
+  const resolvedPath = useResolvedAssetPath({ basePath: "/empty-state/wiki/navigation-pane/assets" });
+  // translation
+  const { t } = useTranslation();
+
+  return (
+    <div className="size-full grid place-items-center">
+      <div className="flex flex-col items-center gap-y-6 text-center">
+        <Image src={resolvedPath} width={160} height={160} alt="An image depicting the assets of a page" />
+        <div className="space-y-2.5">
+          <h4 className="text-base font-medium">{t("page_navigation_pane.tabs.assets.empty_state.title")}</h4>
+          <p className="text-sm text-custom-text-200 font-medium">
+            {t("page_navigation_pane.tabs.assets.empty_state.description")}
+          </p>
+        </div>
+      </div>
+    </div>
+  );
+};

apps/web/ce/components/pages/navigation-pane/tab-panels/empty-states/outline.tsx

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+import Image from "next/image";
+// plane imports
+import { useTranslation } from "@plane/i18n";
+// hooks
+import { useResolvedAssetPath } from "@/hooks/use-resolved-asset-path";
+
+export const PageNavigationPaneOutlineTabEmptyState = () => {
+  // asset resolved path
+  const resolvedPath = useResolvedAssetPath({ basePath: "/empty-state/wiki/navigation-pane/outline" });
+  // translation
+  const { t } = useTranslation();
+
+  return (
+    <div className="size-full grid place-items-center">
+      <div className="flex flex-col items-center gap-y-6 text-center">
+        <Image src={resolvedPath} width={160} height={160} alt="An image depicting the outline of a page" />
+        <div className="space-y-2.5">
+          <h4 className="text-base font-medium">{t("page_navigation_pane.tabs.outline.empty_state.title")}</h4>
+          <p className="text-sm text-custom-text-200 font-medium">
+            {t("page_navigation_pane.tabs.outline.empty_state.description")}
+          </p>
+        </div>
+      </div>
+    </div>
+  );
+};

apps/web/ce/components/pages/navigation-pane/tab-panels/root.tsx

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+// store
+import type { TPageInstance } from "@/store/pages/base-page";
+// local imports
+import type { TPageNavigationPaneTab } from "..";
+
+export type TPageNavigationPaneAdditionalTabPanelsRootProps = {
+  activeTab: TPageNavigationPaneTab;
+  page: TPageInstance;
+};
+
+export const PageNavigationPaneAdditionalTabPanelsRoot: React.FC<
+  TPageNavigationPaneAdditionalTabPanelsRootProps
+> = () => null;