Resolve "TextPreviewView: unable to guess serializer. This is graceful fallback handling for APIViews. Consider using GenericAPIView as view base class, if view is under your control. Ignoring view for now."

Closes #1903 (closed)

api/funkwhale_api/common/serializers.py

@@ -359,3 +359,12 @@ class RateLimitSerializer(serializers.Serializer):
     enabled = serializers.BooleanField()
     ident = IdentSerializer()
     scopes = serializers.ListField(child=ScopesSerializer())
+
+
+class ErrorDetailSerializer(serializers.Serializer):
+    detail = serializers.CharField(source="*")
+
+
+class TextPreviewSerializer(serializers.Serializer):
+    rendered = serializers.CharField(read_only=True, source="*")
+    text = serializers.CharField(write_only=True)