Remove small duplicates in the settings, the logins and the names

One function reads a true or false value. The download name uses the
file name cleaning of the ingest folder. The login code reads the login
mode from the configuration, and has one lockout message. The title
helper of FanFicFare is now unescape_title, because cwa.py has another
plain_title.

scripts/import_unlinked_epub_chapters.py

@@ -304,7 +304,7 @@ def remove_added_chapters(db_store: Store, story: dict, existing: list[dict]) ->
         return
     print(f"{story['title']} has {_count(len(added), 'chapter')} that this script added:")
     for c in added:
-        print(f"  - {fff.plain_title(c['title'])}")
+        print(f"  - {fff.unescape_title(c['title'])}")
     if not _confirm("Delete them and all their revisions?"):
         return
     conn = sqlite3.connect(config.DB_PATH)
@@ -408,7 +408,7 @@ def main(argv: list[str] | None = None) -> None:
         raise ScriptError(f"{story['title']} has no stored chapters yet. Download it in Bindery first.")
 
     epub_chapters = read_epub(args.epub)
-    titles = [fff.plain_title(c["title"]) for c in existing]
+    titles = [fff.unescape_title(c["title"]) for c in existing]
     labels = [t + ("" if c["on_site"] else "  (not on site)") for t, c in zip(titles, existing, strict=True)]
     epub_titles = [c["title"] for c in epub_chapters]