standardize packaging, tooling, docs, CI, and licensing

tests/test_html_table.py

@@ -1,18 +1,15 @@
-from typing import Optional
-
 from pydantic import BaseModel
 
 from omniread import (
     # core
     Content,
-
     # html
     HTMLParser,
 )
 
 
 class ParsedTableHTML(BaseModel):
-    title: Optional[str]
+    title: str | None
     table: list[list[str]]