fix(i18n): complete Simplified Chinese core and plugin translations (#1542)

* fix(i18n): complete Chinese onboarding and navigation labels

* fix(i18n): translate remaining Chinese core and plugin interfaces

* fix(i18n): translate host editor tab overflow controls

* fix(i18n): use consistent Chinese fleet terminology

* fix(i18n): localize hardcoded controls and plugin views

* fix(i18n): translate built-in homepage widget catalog

* test(homepage): follow translated timezone placeholder

* fix(i18n): translate plugin-provided homepage widgets

* fix(i18n): localize feature settings section titles

src/ui/shell/CommandPalette.tsx

@@ -646,7 +646,9 @@ export function CommandPalette({
                   className="flex items-center gap-3 px-3 py-2 rounded-none hover:bg-accent-brand/10 cursor-pointer"
                 >
                   <LifeBuoy className="size-4 text-muted-foreground" />
-                  <span className="text-sm font-medium">Support</span>
+                  <span className="text-sm font-medium">
+                    {t("dashboard.support")}
+                  </span>
                 </CommandItem>
               </div>
             </CommandGroup>