Update lit template

[IanVS]

This does three main things:

• Fixes a race which was causing vite to start up before bindings finished generating, throwing an error in the new plugin.
• Adds application.RegisterEvent[string]("time") to the main.go template
• Updates the js lit template:
  • changes package.json to use the dev runtime package if possible
  • adds a basic tsconfig.json for javascript (pretty lax, doesn't really check anything
  • adds a vite config to inject the plugin.

I kept the vite config and tsconfig very un-opinionated for the time being. I figure it's easiest to start here, and add to it as needed/desired.