updated to work with vue 3

[sebgauthier]

Vue 3 is the new default as of two weeks ago, as such, the frontend project here was broken. I've updated it (minimally) to work with Vue 3.

https://blog.vuejs.org/posts/vue-3-as-the-new-default.html

[ghost]

All CLA requirements met.

[sebgauthier]

Should have paid closed attention to my linter, ill fix up the formatting