Bump elliptic from 6.5.2 to 6.5.3 in /client
Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.2 to 6.5.3.- [Release notes](https://github.com/indutny/elliptic/releases)- [Commits](https://github.com/indutny/elliptic/compare/v6.5.2...v6.5.3)...
re #58 first version of react app