Hide numeric prefixes on disabled TUI list rows (#15660)

- Remove numeric prefixes for disabled rows in shared list rendering.
These numbers are shortcuts, Ex: Pressing "2" selects option `#2`.
Disabled items can not be selected, so keeping numbers on these items is
misleading.
- Apply the same behavior in both tui and tui_app_server.
- Update affected snapshots for apps/plugins loading and plugin detail
rows.

_**This is a global change.**_

Before:
<img width="1680" height="488" alt="image"
src="https://github.com/user-attachments/assets/4bcf94ad-285f-48d3-a235-a85b58ee58e2"
/>

After:
<img width="1706" height="484" alt="image"
src="https://github.com/user-attachments/assets/76bb6107-a562-42fe-ae94-29440447ca77"
/>

codex-rs/tui/src/bottom_pane/list_selection_view.rs

@@ -371,11 +371,14 @@ impl ListSelectionView {
                         ""
                     };
                     let name_with_marker = format!("{name}{marker}");
+                    let is_disabled = item.is_disabled || item.disabled_reason.is_some();
                     let n = visible_idx + 1;
                     let wrap_prefix = if self.is_searchable {
                         // The number keys don't work when search is enabled (since we let the
                         // numbers be used for the search query).
                         format!("{prefix} ")
+                    } else if is_disabled {
+                        format!("{prefix} {}", " ".repeat(n.to_string().len() + 2))
                     } else {
                         format!("{prefix} {n}. ")
                     };
@@ -388,7 +391,6 @@ impl ListSelectionView {
                         .flatten()
                         .or_else(|| item.description.clone());
                     let wrap_indent = description.is_none().then_some(wrap_prefix_width);
-                    let is_disabled = item.is_disabled || item.disabled_reason.is_some();
                     GenericDisplayRow {
                         name: name_with_marker,
                         name_prefix_spans,