fix: minor bugs in ext (#578)

* fix: have VersionAuthor hash the encoded string of self

* fix: prevent AttributeErrors in ext due to missing slots

Author: Catalyst4222

interactions/ext/base.py

@@ -28,6 +28,7 @@ class Base:
         "version",
         "name",
         "description",
+        "long_description",
         "link",
     )
 

interactions/ext/version.py

@@ -48,7 +48,7 @@ def __init__(
         self._co_author = shared
         self.active = active
         self.email = email
-        self._hash = md5(self.__str__())
+        self._hash = md5(self.__str__().encode())
 
     def __hash__(self):
         return self._hash
@@ -83,7 +83,7 @@ class Version:
     :ivar Optional[Dict[str, Union[int, VersionAlphanumericType]]] __alphanum: The alphanumeric typing of the version.
     """
 
-    __slots__ = ("_major", "_minor", "_patch", "__version", "__alphanum")
+    __slots__ = ("_major", "_minor", "_patch", "_authors", "__version", "__alphanum")
 
     def __init__(self, **kwargs) -> None:
         """