Added remake starter into codesandbox.io

[fauziabd]

Hi, I search remake on codesandbox.io but no luck, so I installed by myself.
So far working good on codesandbox.io
for anyone who want to try remake framework in no time, you can go here: https://codesandbox.io/s/remakestarters-3dsdw

[panphora]

Thank you @fauzhq!

We also now have front-end only demos, so you can try out Remake without installing anything — using entirely front-end code!

Todo app: https://codepen.io/panphora/pen/rNMVYZz
Kanban app: https://codepen.io/panphora/pen/ZEpGXZG