index.js
* clean up async/await, and sort init calls in `index.js * use `const _promise` to indicate that we do not need await an async function
* split `index.js` to separate files * tune clipboard * fix promise * fix document * remove intermediate empty file * fix async event listener * use `export function` instead of `export {}`, add more comments Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: 6543 <6543@obermui.de>