Add model name param metadata (#3425)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ludwig/schema/metadata/configs/llm.yaml

@@ -1,3 +1,6 @@
+model_name:
+    ui_display_name: Model Name
+    expected_impact: 3
 generation:
   temperature:
     ui_display_name: Temperature

ludwig/schema/model_types/llm.py

@@ -14,6 +14,7 @@
 )
 from ludwig.schema.generation import LLMGenerationConfig, LLMGenerationConfigField
 from ludwig.schema.hyperopt import HyperoptConfig, HyperoptField
+from ludwig.schema.metadata import LLM_METADATA
 from ludwig.schema.model_types.base import ModelConfig, register_model_type
 from ludwig.schema.preprocessing import PreprocessingConfig, PreprocessingField
 from ludwig.schema.prompt import PromptConfig, PromptConfigField
@@ -48,6 +49,7 @@ def __post_init__(self):
             "model name or a path to a local directory containing a valid "
             "HuggingFace model."
         ),
+        parameter_metadata=LLM_METADATA["model_name"],
     )
 
     input_features: FeatureCollection[BaseInputFeatureConfig] = LLMInputFeatureSelection().get_list_field()