feat: remove KnowledgeSearching and add knowledge configuration page and add a run button to the document (#64)

* feat: add a run button to the document

* feat: add knowledge configuration page

* feat: remove KnowledgeSearching

web/src/utils/fileUtil.ts

@@ -0,0 +1,28 @@
+export const transformFile2Base64 = (val: any): Promise<any> => {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader();
+    reader.readAsDataURL(val);
+    reader.onload = (): void => {
+      resolve(reader.result);
+    };
+    reader.onerror = reject;
+  });
+};
+
+export const transformBase64ToFile = (
+  dataUrl: string,
+  filename: string = 'file',
+) => {
+  let arr = dataUrl.split(','),
+    bstr = atob(arr[1]),
+    n = bstr.length,
+    u8arr = new Uint8Array(n);
+
+  const mime = arr[0].match(/:(.*?);/);
+  const mimeType = mime ? mime[1] : 'image/png';
+
+  while (n--) {
+    u8arr[n] = bstr.charCodeAt(n);
+  }
+  return new File([u8arr], filename, { type: mimeType });
+};