Fix more pyright errors

Author: TrigamDev

src/tagstudio/qt/helpers/file_wrappers/archive/archive_file.py

@@ -17,5 +17,5 @@ def has_file_name(self, file_name: str) -> bool:
         raise NotImplementedError
 
     @abstractmethod
-    def read(self, file_name: str) -> bytes:
+    def read(self, file_name: str) -> bytes | None:
         raise NotImplementedError

src/tagstudio/qt/helpers/file_wrappers/archive/seven_zip_file.py

@@ -3,6 +3,7 @@
 from typing import Literal, Self
 
 import py7zr
+from py7zr import io
 
 from tagstudio.qt.helpers.file_wrappers.archive.archive_file import ArchiveFile
 
@@ -43,7 +44,7 @@ def read(self, file_name: str) -> bytes | None:
         # See https://py7zr.readthedocs.io/en/stable/api.html#py7zr.SevenZipFile.extract
         self.__seven_zip_file.reset()
 
-        factory = py7zr.io.BytesIOFactory(limit=10485760)  # 10 MiB
+        factory = io.BytesIOFactory(limit=10485760)  # 10 MiB
 
         search_paths: list[Path] = [Path(file_name), Path(self.path.name, file_name)]
         try:

src/tagstudio/qt/previews/renderers/ebook_renderer.py

@@ -103,7 +103,10 @@ def _extract_cover(
         ]
         page_name: str = pages[int(unwrap(cover.get("Image")))]
         if page_name.endswith((".png", ".jpg", ".jpeg", ".gif", ".bmp", ".svg")):
-            image_data: bytes = archive.read(page_name)
+            image_data: bytes | None = archive.read(page_name)
+            if image_data is None:
+                raise OSError
+
             return Image.open(BytesIO(image_data))
 
     return None