refactor: simplify LibreOfficeFormat StrEnum using enum.auto()

from __future__ import annotations

from enum import StrEnum

from enum import StrEnum, auto

class LibreOfficeFormat(StrEnum):

    """Supported LibreOffice output formats."""

    ODT = "odt"

    DOC = "doc"

    DOCX = "docx"

    RTF = "rtf"

    PDF = "pdf"

    HTML = "html"

    XHTML = "xhtml"

    TXT = "txt"

    MD = "md"

    EPUB = "epub"

    FODT = "fodt"

    ODS = "ods"

    XLS = "xls"

    XLSX = "xlsx"

    CSV = "csv"

    FODS = "fods"

    ODP = "odp"

    PPT = "ppt"

    PPTX = "pptx"

    FODP = "fodp"

    ODG = "odg"

    SVG = "svg"

    FODG = "fodg"

    ODT = auto()

    DOC = auto()

    DOCX = auto()

    RTF = auto()

    PDF = auto()

    HTML = auto()

    XHTML = auto()

    TXT = auto()

    MD = auto()

    EPUB = auto()

    FODT = auto()

    ODS = auto()

    XLS = auto()

    XLSX = auto()

    CSV = auto()

    FODS = auto()

    ODP = auto()

    PPT = auto()

    PPTX = auto()

    FODP = auto()

    ODG = auto()

    SVG = auto()

    FODG = auto()

UNSUPPORTED_CONVERSIONS: frozenset[tuple[str, str]] = frozenset(