feat: rework account service

...onents/ContentComponents/Konnector/KonnectorLoginForm.tsx

...onents/ContentComponents/Konnector/KonnectorOAuthForm.tsx

...omponents/ContentComponents/Konnector/KonnectorResult.tsx

...ContentComponents/KonnectorViewer/KonnectorViewerCard.tsx

src/doctypes/io-cozy-accounts.ts

src/models/account.model.ts

src/services/account.service.ts

src/services/connectionService.ts

src/services/fluidService.ts

src/services/initDataManagerService.ts

src/services/konnectorStatusService.ts