add all frontend files

node_modules/antd/es/watermark/useWatermark.d.ts

@@ -0,0 +1,13 @@
+import * as React from 'react';
+/**
+ * Base size of the canvas, 1 for parallel layout and 2 for alternate layout
+ * Only alternate layout is currently supported
+ */
+export declare const BaseSize = 2;
+export declare const FontGap = 3;
+export type AppendWatermark = (base64Url: string, markWidth: number, container: HTMLElement) => void;
+export default function useWatermark(markStyle: React.CSSProperties): [
+    appendWatermark: AppendWatermark,
+    removeWatermark: (container: HTMLElement) => void,
+    isWatermarkEle: (ele: Node) => boolean
+];