Docs change required

[modermo]

I think a little more specificity is required in the 'In Depth' docs for the component value defined in a vite.config.js.

For Vue3 users, the component value is vue3, not vue as suggested by the docs. As follows:

svgicon({
  include: ['**/assets/svg/**/*.svg'],
  svgFilePath: path.join(__dirname, 'src/assets/svg'),
  component: 'vue3', // Not just 'vue', as suggested by the docs
})