refactor(core): split web entry from core (#6082)

This pr is trying to split `web` and `electron` entries from `core`. It allows more platform-related optimization to be addressed in each entry.
We should remove all browser/electron only codes from `core` eventually, this is the very first step for that.

packages/frontend/core/src/hooks/use-app-config-storage.ts

@@ -1,4 +1,5 @@
 import { apis } from '@affine/electron-api';
+import { setupGlobal } from '@affine/env/global';
 import { assertExists } from '@blocksuite/global/utils';
 import {
   type AppConfigSchema,
@@ -35,6 +36,8 @@ class AppConfigProxy {
 }
 export const appConfigProxy = new AppConfigProxy();
 
+setupGlobal();
+
 const storage = environment.isDesktop
   ? new AppConfigStorage({
       config: defaultAppConfig,