The actual website is okay but it could do with some adjustments.
From what I can see, you went for a material design? Use this, it’s a React framework but React is one of the best frameworks I have ever used (plus it is super easy to learn if you are familiar with JS, JSX (or TSX if you want) is really simple to learn!).
Apart from that, I really don’t think manual approval is a good idea. You could save a lot of time by grabbing the source of a model and sandbox it with H3x (H3x is a great tool which should be getting a refactor soon ).
Oh and if you use Roact, I’d highly recommend integrating this into your project.
Other than that, your plugin is a neat idea which only needs some things readjusted to make a good plugin.