Add an Install > China Apps menu shown only in China

test/shell.d/menu-test.sh

@@ -292,7 +292,8 @@ assert(!defaultById['install.ai.crush'], 'menu removes Crush from Install > AI')
 // any other `when:` here is a row that went back to vanishing once installed.
 assertDeepEqual(
   defaultItems
-    .filter(item => item.id.startsWith('install.') && item.action && item.when)
+    // China Apps rows hide by region, not because the software is there.
+    .filter(item => item.id.startsWith('install.') && item.action && item.when && item.when !== '[[ "$(omarchy-region)" == "China" ]]')
     .map(item => item.id),
   ['install.service.chromium-account'],
   'menu never hides an Install row because the software is already there'