Support vue3？ #95
Description
use for vue3 project has a problem
[vm.$set() is a function](json-editor.min.js:1918 Uncaught (in promise) TypeError: vm.$set is not a function)
{{ message }}
use for vue3 project has a problem
[vm.$set() is a function](json-editor.min.js:1918 Uncaught (in promise) TypeError: vm.$set is not a function)