basic functionalities create/edit/delete working

frontend/.eslintcache

frontend/src/App.js

...omponents/apotheke/einstellungen/ApothekeEinstellungen.js

...components/apotheke/einstellungen/tabellen/ArztTabelle.js

.../components/apotheke/einstellungen/tabellen/BtmTabelle.js

...nents/apotheke/einstellungen/tabellen/LieferantTabelle.js

...onents/apotheke/einstellungen/tabellen/PersonalTabelle.js

frontend/src/modals/ArztAddModal.js

frontend/src/modals/ArztEditModal.js

frontend/src/modals/BtmAddModal.js

frontend/src/modals/BtmEditModal.js

frontend/src/modals/LieferantAddModal.js

frontend/src/modals/LieferantEditModal.js

frontend/src/modals/PersonalAddModal.js

frontend/src/modals/PersonalEditModal.js