Updating embeddings config fields from prespecified custom config file (#1298)

* Updating embeddings config fields from prespecified custom config file

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update extension.py

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

Author: srdas

packages/jupyter-ai/jupyter_ai/extension.py

@@ -347,7 +347,6 @@ def initialize_settings(self):
         self.log.info(f"Configured provider blocklist: {self.blocked_providers}")
         self.log.info(f"Configured model allowlist: {self.allowed_models}")
         self.log.info(f"Configured model blocklist: {self.blocked_models}")
-
         self.settings["model_parameters"] = self.model_parameters
         self.log.info(f"Configured model parameters: {self.model_parameters}")
 
@@ -356,6 +355,8 @@ def initialize_settings(self):
             "embeddings_provider_id": self.default_embeddings_model,
             "api_keys": self.default_api_keys,
             "fields": self.model_parameters,
+            "embeddings_fields": self.model_parameters,
+            "completions_fields": self.model_parameters,
         }
 
         # Fetch LM & EM providers