refactor: new project struct (#8199)

packages/frontend/web -> packages/frontend/apps/web
packages/frontend/mobile -> packages/frontend/apps/mobile
packages/frontend/electron -> packages/frontend/apps/electron

packages/frontend/apps/electron/test/main/mocks/index.ts

@@ -0,0 +1,3 @@
+export * from './app-adapter';
+export * from './http-executor';
+export * from './updater';