Due to the recent upgrade to Storybook 7, the source blocks of Canvases
were broken, they were only showing args. This was mainly due to the fact
that as of Storybook 7 the meta tags of the MDX files have changed, thus
causing the issue. These are now based on imports. We also needed to rename
index.stories.mdx files to index.mdx because Storybook was throwing errors,
maybe due to a conflicts with index.stories.tsx files and new imports.
Anyway this way of naming MDX files seems to be the recommend one based on
the official documentation.
