tui: fix wrapping in trust_directory (#5007)

Refactor trust_directory to use ColumnRenderable & friends, thus
correcting wrapping behavior at small widths. Also introduce
RowRenderable with fixed-width rows.

- fixed wrapping in trust_directory
- changed selector cursor to match other list item selections
- allow y/n to work as well as 1/2
- fixed key_hint to be standard

before:
<img width="661" height="550" alt="Screenshot 2025-10-09 at 9 50 36 AM"
src="https://github.com/user-attachments/assets/e01627aa-bee4-4e25-8eca-5575c43f05bf"
/>

after:
<img width="661" height="550" alt="Screenshot 2025-10-09 at 9 51 31 AM"
src="https://github.com/user-attachments/assets/cb816cbd-7609-4c83-b62f-b4dba392d79a"
/>

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

@@ -104,9 +104,9 @@ impl ApprovalOverlay {
             ),
         };
 
-        let header = Box::new(ColumnRenderable::new([
-            Box::new(Line::from(title.bold())),
-            Box::new(Line::from("")),
+        let header = Box::new(ColumnRenderable::with([
+            Line::from(title.bold()).into(),
+            Line::from("").into(),
             header,
         ]));
 
@@ -323,7 +323,7 @@ impl From<ApprovalRequest> for ApprovalRequestState {
                 header.push(DiffSummary::new(changes, cwd).into());
                 Self {
                     variant: ApprovalVariant::ApplyPatch { id },
-                    header: Box::new(ColumnRenderable::new(header)),
+                    header: Box::new(ColumnRenderable::with(header)),
                 }
             }
         }

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

@@ -87,7 +87,7 @@ impl ListSelectionView {
         if params.title.is_some() || params.subtitle.is_some() {
             let title = params.title.map(|title| Line::from(title.bold()));
             let subtitle = params.subtitle.map(|subtitle| Line::from(subtitle.dim()));
-            header = Box::new(ColumnRenderable::new([
+            header = Box::new(ColumnRenderable::with([
                 header,
                 Box::new(title),
                 Box::new(subtitle),