docx and pdf: Fix the parsing of document content (for docx and pdf) when there are subchapters for which some parent chapter do not have direct articles
docx and pdf: Fix the generation of the Table of contents if there are sub-chapters
docx: handle the div style classes
Take into account the parent styles classes when merging with non empty children style classes
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docx and pdf: Fix the parsing of document content (for docx and pdf) when there are subchapters for which some parent chapter do not have direct articles
docx and pdf: Fix the generation of the Table of contents if there are sub-chapters
docx: handle the div style classes
Take into account the parent styles classes when merging with non empty children style classes