style: format code with Autopep8

This commit fixes the style issues introduced in 68e4abf according to the output
from Autopep8.

Details: None

src/modules/download_images.py

@@ -64,21 +64,21 @@ def book_handler(self, links: Link) -> None:
         if create_directory(folder_path, force=True):
             for link in links.files:
                 self.book_download(link=link, folder_path=folder_path)
-    
+
     # Nguyen Xu lys di nha:))
     def preview_and_page_download(self, link: LinkFile, folder_path: str) -> None:
-            if create_directory(folder_path, force=True):
-            number_of_pages: int = link.num_pages
-            with alive_bar(number_of_pages) as bar:  # pylint: disable=disallowed-name
-                for page_num in range(1, number_of_pages + 1):
-                    sub_link: str = create_page_link(link.page_link, page_num)
-                    image_bytes: bytes = self.download_image_from_page(
-                        sub_link)
-                    image: ImagePIL = Image.open(BytesIO(image_bytes))
-                    image_path: str = os.path.join(
-                        self.download_directory, f'image_{page_num}.jpg')
-                    image.save(image_path)
-                    bar()  # pylint: disable=not-callable
+        if create_directory(folder_path, force=True):
+        number_of_pages: int = link.num_pages
+        with alive_bar(number_of_pages) as bar:  # pylint: disable=disallowed-name
+            for page_num in range(1, number_of_pages + 1):
+                sub_link: str = create_page_link(link.page_link, page_num)
+                image_bytes: bytes = self.download_image_from_page(
+                    sub_link)
+                image: ImagePIL = Image.open(BytesIO(image_bytes))
+                image_path: str = os.path.join(
+                    self.download_directory, f'image_{page_num}.jpg')
+                image.save(image_path)
+                bar()  # pylint: disable=not-callable
 
     def preview_and_page_handler(self, link: LinkFile) -> None:
         """Dowload All book's images from page link and previews link