Consider adding a tsconfig.json for the user's vite.config.ts

[sodic]

The vite.config.ts file in the root directory currently doesn't have an accompanying tsconfig.json file, so I'm guessing the IDE checks it with TypeScript's default compilerOptions.

Depending on how important this is, we should either:

1. Include an additional tsconfig.node.json that targets vite.config.ts in all new Wasp project (as is the case for Vite projects).
2. Document how users can specify a config for their vite.config.ts file.