Share Extension: consider making the top line become the post title when sharing from Bear into the WordPress app

Expected behavior

I had expected the very top Heading from Bear to become the Title of the WordPress post even though logically I see that it is labeled H1.

Actual behavior

Exporting from Bear to TXT then sharing to the WordPress app results in the title from Bear becoming a Heading in the body of the WordPress post.

Steps to reproduce the behavior

1. Open Bear and add some content.
2. Tap the (i) icon at top right.
3. Select TXT.
4. Tap the share icon at top right.
5. Select the WordPress app (must be 12.1+).
6. Tap “Next” at top right.
7. Select a site if prompted.
8. Tap “Publish” at top right.
9. View the published post in a browser or preview it in the app.

^{Tested on WP Internal 12.1.0.20190325 on iPhone 6S iOS 12.2 sharing from Bear into madefortesting190318.wordpress.com.}

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Start with the iOS Share Extension flow that handles TXT content shared from Bear, then reproduce the issue using the listed steps on an iPhone. Trace how the top heading is mapped during publishing. Done means the top Bear heading becomes the WordPress post title and is no longer duplicated as a body heading.