Update dependencies and version in package files

- Bump version to 3.0.4 in package.json and package-lock.json
- Update @apidevtools/json-schema-ref-parser to ^14.1.1
- Update @emotion/styled to ^11.14.1
- Update @mui/icons-material and @mui/material to ^7.2.0
- Update dotenv to ^17.2.1
- Update react, react-dom to ^19.1.1
- Update react-markdown to ^10.1.0
- Update @vvago/vale to ^3.12.0
- Update typescript to ~5.8.3

Author: hawkeyexl