UI QA fixes

ui/litellm-dashboard/src/components/add_model/provider_specific_fields.tsx

@@ -224,12 +224,14 @@ const PROVIDER_CREDENTIAL_FIELDS: Record<Providers, ProviderCredentialField[]> =
     {
       key: "aws_access_key_id",
       label: "AWS Access Key ID",
+      type: "password",
       required: true,
       tooltip: "You can provide the raw key or the environment variable (e.g. `os.environ/MY_SECRET_KEY`)."
     },
     {
       key: "aws_secret_access_key",
       label: "AWS Secret Access Key",
+      type: "password",
       required: true,
       tooltip: "You can provide the raw key or the environment variable (e.g. `os.environ/MY_SECRET_KEY`)."
     },

ui/litellm-dashboard/src/components/model_add/add_credentials_tab.tsx

@@ -101,6 +101,7 @@ const AddCredentialsModal: React.FC<AddCredentialsModalProps> = ({
           tooltip="Helper to auto-populate provider specific fields"
         >
           <AntdSelect
+            showSearch
             onChange={(value) => {
               setSelectedProvider(value as Providers);
               form.setFieldValue("custom_llm_provider", value);