message: fix(first-app-angular): Fix typo in variable
  Fixing typo that causes compiliation failure, Changing blog to blob
diff: @@ -48,7 +48,7 @@ private async readAsBase64(cameraPhoto: CameraPhoto) {
  return await this.convertBlobToBase64(blob) as string;
  }
  -convertBlobToBase64 = (blog: Blob) => new Promise((resolve, reject) => {
  +convertBlobToBase64 = (blob: Blob) => new Promise((resolve, reject) => {
  const reader = new FileReader;
  reader.onerror = reject;
  reader.onload = () => {
  