feat: removes lazy without suspense from global sections (#2468)

## What's the purpose of this pull request?

This PR is part of the Performance epic and aims to remove lazy
components/sections without a `Suspense` associated.

PSI snapshot

<img width="891" alt="Screenshot 2024-09-24 at 18 50 34"
src="https://github.com/user-attachments/assets/cabd13a6-8ccc-4fda-a1e6-8cbc1755c262">

## starter PR
- vtex-sites/starter.store#545

packages/core/src/components/cms/GlobalSections.tsx

@@ -1,7 +1,7 @@
 import { Locator, Section } from '@vtex/client-cms'
 import storeConfig from 'faststore.config'
 import type { ComponentType } from 'react'
-import { PropsWithChildren, lazy } from 'react'
+import { PropsWithChildren } from 'react'
 import CUSTOM_COMPONENTS from 'src/customizations/src/components'
 import { PageContentType, getPage } from 'src/server/cms'
 
@@ -13,8 +13,8 @@ import Footer from 'src/components/sections/Footer'
 import { OverriddenDefaultNavbar as Navbar } from 'src/components/sections/Navbar/OverriddenDefaultNavbar'
 import { OverriddenDefaultRegionBar as RegionBar } from 'src/components/sections/RegionBar/OverriddenDefaultRegionBar'
 
-const RegionModal = lazy(() => import('src/components/region/RegionModal'))
-const CartSidebar = lazy(() => import('src/components/cart/CartSidebar'))
+import CartSidebar from 'src/components/cart/CartSidebar'
+import RegionModal from 'src/components/region/RegionModal'
 
 export const GLOBAL_SECTIONS_CONTENT_TYPE = 'globalSections'