Feature: Illustration strings for a18y (#171)

...i/coronawarnapp/util/formatter/FormatterSettingsHelper.kt

...rn-App/src/main/res/layout/fragment_information_about.xml

...-App/src/main/res/layout/fragment_information_contact.xml

...rn-App/src/main/res/layout/fragment_information_legal.xml

...-App/src/main/res/layout/fragment_information_privacy.xml

...pp/src/main/res/layout/fragment_information_technical.xml

...rn-App/src/main/res/layout/fragment_information_terms.xml

...a-Warn-App/src/main/res/layout/fragment_main_overview.xml

Corona-Warn-App/src/main/res/layout/fragment_main_share.xml

Corona-Warn-App/src/main/res/layout/fragment_onboarding.xml

...src/main/res/layout/fragment_onboarding_notifications.xml

...n-App/src/main/res/layout/fragment_onboarding_privacy.xml

...Warn-App/src/main/res/layout/fragment_onboarding_test.xml

...n-App/src/main/res/layout/fragment_onboarding_tracing.xml

...p/src/main/res/layout/fragment_settings_notifications.xml

...-Warn-App/src/main/res/layout/fragment_settings_reset.xml

...arn-App/src/main/res/layout/fragment_settings_tracing.xml

...n-App/src/main/res/layout/include_information_details.xml

Corona-Warn-App/src/main/res/layout/include_onboarding.xml

Corona-Warn-App/src/main/res/values/strings.xml