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/electron/tsconfig.json

@@ -14,7 +14,7 @@
     "noImplicitOverride": true
   },
   "include": ["./src"],
-  "exclude": ["node_modules", "lib", "dist", "**/__tests__/**/*"],
+  "exclude": ["renderer", "node_modules", "lib", "dist", "**/__tests__/**/*"],
   "references": [
     {
       "path": "../../frontend/native"