Make `BlossomResponse` generic over the returned data

[TimJentzsch]

Currently, the data attribute of BlossomResponse is fixed to the type Union[Dict[str, Any], None]. Instead, it should be a generic type parameter so that me can provide more type information for specific endpoints.

Also, most endpoints currently return List[Dict[str, Any]] instead, making the type information misleading.

Relevant definitions:

blossom-wrapper/blossom_wrapper/__init__.py

Lines 24 to 26 in 7ccf68a

	class BlossomResponse:
	data: Union[Dict[str, Any], None] = None
	status: BlossomStatus = BlossomStatus.ok