Store update data in frontend, numeric metric table

I've updated the storage to sort the data received into five categories to make usage in the UI easier. We probably also want to separate waveforms from the other metrics for performance reasons, but we'll cross that bridge when we get here.

The JSON visualization for all data was just super laggy and didn't perform at all, and this was against the simple reference provider. The numeric metric table i've introduced in its place looks like this. I also added the current mdib version to the header.