refactor(core): adjust core struct (#8218)

packages/frontend/core/src

hooks -> components/hooks
atoms -> components/atoms
layouts -> components/layouts
providers -> components/providers
mixpanel -> @affine/track
~~shared~~
~~unexpected-application-state~~

packages/frontend/track/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "@affine/track",
+  "type": "module",
+  "private": true,
+  "version": "0.16.0",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "sideEffects": "false",
+  "dependencies": {
+    "@affine/debug": "workspace:*",
+    "mixpanel-browser": "^2.49.0"
+  },
+  "devDependencies": {
+    "vitest": "^2.0.5"
+  }
+}