Add `frozen=True` to dataclasses

src/display/utils.py

@@ -13,7 +13,7 @@ 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
@@ -63,7 +63,7 @@ class EvalQueueColumn:  # Queue column
     status = ColumnContent("status", "str", True)
 
 ## All the model information that we might need
-@dataclass
+@dataclass(frozen=True)
 class ModelDetails:
     name: str
     display_name: str = ""