[Feature] SvgName as const assertion

[luigigorlero]

Hello! Really enjoying using this :)
I was looking for a way to iterate over the union type, was wondering what your thoughts were on using a const assertions to declare the SvgName type.

So, instead of having:

export {}

declare global {
  export type SvgName = 'plus' | 'minus' | 'cross' | 'default' | etc…
}

the module would generate:

export const svgName = ['plus', 'minus', 'cross', 'default', etc…] as const

declare global {
  type SvgName = typeof svgName[number]
}