refactor: Rename relative_filepath to relative_package_filepath t…

…o better express what it does

src/griffe/dataclasses.py

@@ -550,7 +550,7 @@ def filepath(self) -> Path | list[Path]:
  return self.module.filepath
 
  @cached_property # noqa: WPS231
- def relative_filepath(self) -> Path: # noqa: WPS231
+ def relative_package_filepath(self) -> Path: # noqa: WPS231
  """Return the file path where this object was defined, relative to the top module path.
 
  Raises:
@@ -560,23 +560,23 @@ def relative_filepath(self) -> Path: # noqa: WPS231
  A file path.
  """
  package_path = self.package.filepath
- if isinstance(self.module.filepath, list):
+ if isinstance(self.filepath, list):
  if isinstance(package_path, list):
  for pkg_path in package_path:
- for self_path in self.module.filepath:
+ for self_path in self.filepath:
  with suppress(ValueError):
  return self_path.relative_to(pkg_path.parent)
  else:
- for self_path in self.module.filepath: # noqa: WPS440
+ for self_path in self.filepath: # noqa: WPS440
  with suppress(ValueError):
  return self_path.relative_to(package_path.parent.parent)
  raise ValueError
  if isinstance(package_path, list):
  for pkg_path in package_path: # noqa: WPS440
  with suppress(ValueError):
- return self.module.filepath.relative_to(pkg_path.parent)
+ return self.filepath.relative_to(pkg_path.parent)
  raise ValueError
- return self.module.filepath.relative_to(package_path.parent.parent)
+ return self.filepath.relative_to(package_path.parent.parent)
 
  @cached_property
  def path(self) -> str: