Exposureapp 1079 (#274)

* accessibility button texts

* accessibility fixes

* replace buttons with image views

* solve conflicts with dev

* accessibility for all onboarding views

* accessibility for all submission views

* accessibility for risk details

* call views with bindings

* pull request review fixes

* strings

* lint check fixes

* lint check fixes

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>