settings_ui: Show migration banner (#41112)

Closes #ISSUE

Release Notes:

- N/A *or* Added/Fixed/Improved ...

---------

Co-authored-by: Danilo <danilo@zed.dev>

crates/settings/src/keymap_file.rs

@@ -17,8 +17,9 @@ use util::{
     markdown::{MarkdownEscaped, MarkdownInlineCode, MarkdownString},
 };
 
-use crate::{
-    SettingsAssets, append_top_level_array_value_in_json_text, parse_json_with_comments,
+use crate::SettingsAssets;
+use settings_json::{
+    append_top_level_array_value_in_json_text, parse_json_with_comments,
     replace_top_level_array_value_in_json_text,
 };