fix: style updates to center modal

Changes following commits https://github.com/ocombe/ocModal/commit/d153f425f0e375d9cd8a39ffbf93047c326eb2b0 & https://github.com/ocombe/ocModal/commit/f99f4ba66f808e3760ea67120792a5af6eace63d
chore: update 0.1.1