FEAT #8215 application version + refactor on about us

apps/maarch_entreprise/Views/about-us.component.html

...ch_entreprise/class/class_business_app_tools_Abstract.php

apps/maarch_entreprise/js/angular/app/about-us.component.ts

apps/maarch_entreprise/js/angular/lang/lang-en.ts

apps/maarch_entreprise/js/angular/lang/lang-fr.ts

apps/maarch_entreprise/login.php

apps/maarch_entreprise/xml/applicationVersion.xml

src/core/controllers/CoreController.php

src/core/models/CoreConfigModel.php