fix src/display/utils.py bug

src/display/utils.py

@@ -12,7 +12,7 @@ def fields(raw_class):
 # These classes are for user facing column names,
 # to avoid having to change them all around the code
 # when a modif is needed
-@dataclass
+@dataclass(frozen=True)
 class ColumnContent:
     name: str
     type: str
@@ -37,7 +37,7 @@ auto_eval_column_dict.append(["license", ColumnContent, ColumnContent("Hub Licen
 AutoEvalColumn = make_dataclass("AutoEvalColumn", auto_eval_column_dict, frozen=True)
 
 ## All the model information that we might need
-@dataclass
+@dataclass(frozen=True)
 class ModelDetails:
     name: str
     display_name: str = ""