feat(angular): Upgrade to Angular v12 (#5) * feat(angular): ngx-clipboard and ngx-markdown updated * feat(angular): angular/core angular/cli updated * feat(angular): angluar/flex-layout updated * feat(angular): ivy enabled and angular/material updated * feat(angular): bump version * feat(angular): update nodejs version in travis config file Co-authored-by: Darko Andreev <darko.andreev@paysafe.com>