Add modal for going back with unsaved changes + fix value modals#429

CommanderRedYT merged 2 commits into

developOpenDTU-App/opendtu-react-native:developfrom

241-ask-if-user-wants-to-discard-settings-before-allowing-refreshOpenDTU-App/opendtu-react-native:241-ask-if-user-wants-to-discard-settings-before-allowing-refreshCopy head branch name to clipboard