♻️ refactor(layout): rename workspace switcher to system brand

Rename the layout branding component to reflect that it displays the system identity rather than switching workspaces. Update header usage and layout exports, and remove the now-unused workspace data dependency.

web/default/src/i18n/locales/vi.json

@@ -1826,6 +1826,7 @@
     "Go back and edit": "Quay lại và chỉnh sửa",
     "Go to Dashboard": "Truy cập Dashboard",
     "Go to first page": "Go to the first page",
+    "Go to home": "Về trang chủ",
     "Go to io.net API Keys": "Đi đến Khóa API io.net",
     "Go to last page": "Go to the last page",
     "Go to next page": "Đi đến trang tiếp theo",