Use ⌥⇧⌃ glyphs for key hints on mac (#3143)

#### Summary
- render the edit queued message shortcut with the ⌥ modifier on macOS
builds
- add a helper for status indicator snapshot suffixes
- record macOS-specific snapshots for the status indicator widget

codex-rs/tui/src/chatwidget/tests.rs

@@ -1075,8 +1075,6 @@ fn apply_patch_manual_approval_adjusts_header() {
 
 #[test]
 fn apply_patch_manual_flow_snapshot() {
-    use insta::assert_snapshot;
-
     let (mut chat, mut rx, _op_rx) = make_chatwidget_manual();
 
     let mut proposed_changes = HashMap::new();
@@ -1647,5 +1645,5 @@ fn chatwidget_exec_and_status_layout_vt100_snapshot() {
     }
 
     let visual = vt_lines.join("\n");
-    insta::assert_snapshot!(visual);
+    assert_snapshot!(visual);
 }