inline assistant: Fix model picker (#29136)

Release Notes:

- inline assistant: Fixed a bug where the default model would be used
even when a specific inline assistant model was configured

crates/assistant_context_editor/src/context_editor.rs

@@ -39,7 +39,7 @@ use language_model::{
     Role,
 };
 use language_model_selector::{
-    LanguageModelSelector, LanguageModelSelectorPopoverMenu, ToggleModelSelector,
+    LanguageModelSelector, LanguageModelSelectorPopoverMenu, ModelType, ToggleModelSelector,
 };
 use multi_buffer::MultiBufferRow;
 use picker::Picker;
@@ -298,6 +298,7 @@ impl ContextEditor {
                             move |settings, _| settings.set_model(model.clone()),
                         );
                     },
+                    ModelType::Default,
                     window,
                     cx,
                 )