chore: bump up version

style: mobile responsive refactoring

refactor: added JS docs

doc: update readme

chore: bump up version to 0.0.5

feat: support customized date format

feat: put the year/month/date into same element

feat: add error handling and render error message when content format is invalid

chore: upgrade version

Update release notes

feat: add button to add new event

refactor: split large file into small files

chore: bump up to version 0.0.3, also update readme

feat: add new function to search events

feat: add new setting to show/hide header buttons