Polish edit predictions (#24732)

Release Notes:

- N/A

---------

Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: as-cii <as-cii@zed.dev>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>

crates/language/src/language_settings.rs

@@ -237,9 +237,9 @@ pub struct EditPredictionSettings {
 pub enum EditPredictionsMode {
     /// If provider supports it, display inline when holding modifier key (e.g., alt).
     /// Otherwise, eager preview is used.
-    #[default]
     Auto,
     /// Display inline when there are no language server completions available.
+    #[default]
     EagerPreview,
 }