Lab day plugin bugs + improvements

Opening this for visibility as I work through some of these changes. Feel free to add any aditional feedback that anyone else has!

Bugs:

[x] Custom components don't work with generated bindings for things like field settings or action inputs
[x] fetchRow in the internal API is currently broken (frontend implementation, the actual endpoint is fine)
[x] table setting type is broken

Improvements:

[ ] BBUI could be bundled better so that individual components could be imported, e.g. Import Button from "@budibase/bbui/button", without needing to bundle the entirety of BBUI
[x] Use the plugin friendly name (rather than the component name) for names of new plugin components, e.g. New Custom Component instead of New custom-component
[x] Use a separate rollup config when developing plugings (when watch mode is active) which adds inline sourcemaps and disables terser, for easier debugging
[x] Show Plugin X reloaded notification
[ ] Document use of "type": "event" + usage with actions / bindings
[x] Notify builder from client when plugins are hot reloaded, so the builder can fetch component definitions again (cheap hack to basically get hot reloading of component settings)
[x] Ensure only one instance of the websocket can be constructed

Budibase / budibase