"parse-text-from-any-block-type" example bug fixed (not printing ordinary "rich_text" blocks)

[adasq]

The current version doesn't support a general rich_text case, for the following block:

{
  type: 'rich_text',
  rich_text: [
    {
      type: 'text',
      text: [Object],
      annotations: [Object],
      plain_text: 'plain!',
      href: null
    }
  ]
}

The first if condition:

if (block[block.type].rich_text) {
        // This will be an empty string if it's an empty line.
        text = getPlainTextFromRichText(block[block.type].rich_text)
    }

doesn't cover it, as it resolves to block.rich_text.rich_text.

[christinewa]

Hey, thanks for opening this PR. We're doing some git history cleanup and need to close the PR as it'll become invalid. Afterwards, please reclone the repo and you can reopen the PR. Thanks for your patience and sincere apologies for the trouble.