Use the term "edit prediction" over "inline completion" (#24211)

Note that this does *not* involve any breaking code changes.

cc @0xtimsb - I didn't change any settings or anything here. That can
happen separately!

Release Notes:

- N/A

crates/zed/src/zed/quick_action_bar.rs

@@ -295,7 +295,7 @@ impl Render for QuickActionBar {
                         );
 
                         menu = menu.toggleable_entry(
-                            "Inline Completions",
+                            "Edit Predictions",
                             inline_completions_enabled,
                             IconPosition::Start,
                             Some(editor::actions::ToggleInlineCompletions.boxed_clone()),