FEAT #13671 TIME 5:30 begin front installer

src/frontend/app/app-routing.module.ts

src/frontend/app/app.module.ts

src/frontend/app/installer/database/database.component.html

src/frontend/app/installer/database/database.component.scss

src/frontend/app/installer/database/database.component.ts

src/frontend/app/installer/installer.component.html

src/frontend/app/installer/installer.component.scss

src/frontend/app/installer/installer.component.ts

...nd/app/installer/prerequisite/prerequisite.component.html

...nd/app/installer/prerequisite/prerequisite.component.scss

...tend/app/installer/prerequisite/prerequisite.component.ts

src/frontend/app/installer/welcome/welcome.component.html

src/frontend/app/installer/welcome/welcome.component.scss

src/frontend/app/installer/welcome/welcome.component.ts