[duncanmcclean]

This pull request attempts to fix text formatting issues for conent imported from WordPress' Classic Editor.

It doesn't seem like the Classic Editor saves <p> tags when a post's content are saved in the database. Here's an example:

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<h2>Testing</h2>
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However, when content is displayed on the frontend, it gets passed through WordPress' wpautop function which essentially runs the content through various regexes before outputting HTML to the browser.

However, since the content doesn't get passed through wpautop during an export, we end up with the unnormalized "string" which breaks TipTap (the library behind Bard).

In order to workaround this, we've added a config option which'll run your content through wpautop before transforming it into the right format for Bard.

Fixes #62.
Replaces #65.