Regression: Update custom homepage content behavior (#26571)

apps/meteor/app/lib/server/startup/settings.ts

apps/meteor/client/components/PlanTag.tsx

apps/meteor/client/hooks/useIsEnterprise.ts

apps/meteor/client/views/admin/EditableSettingsContext.ts

.../client/views/admin/settings/EditableSettingsProvider.tsx

apps/meteor/client/views/admin/settings/MemoizedSetting.tsx

apps/meteor/client/views/admin/settings/Setting.tsx

apps/meteor/client/views/home/CustomHomePage.tsx

apps/meteor/client/views/home/CustomHomePageContent.tsx

apps/meteor/client/views/home/DefaultHomePage.tsx

apps/meteor/client/views/home/HomePage.tsx

apps/meteor/ee/app/settings/server/settings.ts

apps/meteor/packages/rocketchat-i18n/i18n/en.i18n.json

apps/meteor/server/startup/migrations/v280.ts

apps/meteor/tests/e2e/homepage.spec.ts