move angular boot in src/core

angular.json

index.php

src/frontend/app/login/login.component.ts

src/frontend/app/profile/profile.component.scss

src/frontend/app/profile/profile.component.ts

src/frontend/app/sidebar/sidebar.component.scss

src/frontend/assets/logo_white.svg

src/frontend/assets/user_sample.svg

src/frontend/core/browserslist

src/frontend/core/environments/environment.prod.ts

src/frontend/core/environments/environment.ts

src/frontend/core/favicon.ico

src/frontend/core/index.html

src/frontend/core/karma.conf.js

src/frontend/core/main.ts

src/frontend/core/pdf.pdf

src/frontend/core/polyfills.ts

src/frontend/core/styles.scss

src/frontend/core/test.ts

src/frontend/core/tsconfig.app.json