fix: find paragraphs in elements with images in docx

[Manuel030]

Some text is not found when using the MsWordDocumentBackend. An example docx file where this happens is attached: paragraph_in_image.docx

The pragmatic solution is to attempt to add text elements even when a drawing expression is found.

Checklist:

• [ ] Documentation has been updated, if necessary.
• [ ] Examples have been added, if necessary.
• [ ] Tests have been added, if necessary.

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[PeterStaar-IBM]

@Manuel030 Thank you for the PR! Could you add this document as a test?

[Manuel030]

@PeterStaar-IBM Sure

[cau-git]

@Manuel030 @maxmnemonic There is apparently a newer PR with the same goal here: https://github.com/docling-project/docling/pull/1610 which has the proper condition to not produce empty text paragraphs.

[PeterStaar-IBM]

closing this, superseded by https://github.com/docling-project/docling/pull/1610