[NEW] Homepage new block (#27540)

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

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/HomePageHeader.tsx

apps/meteor/client/views/home/cards/CustomContentCard.tsx

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

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

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

apps/meteor/packages/rocketchat-i18n/i18n/be-BY.i18n.json

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

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

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

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

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

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

apps/meteor/packages/rocketchat-i18n/i18n/de-AT.i18n.json

apps/meteor/packages/rocketchat-i18n/i18n/de-IN.i18n.json