v5.2.0

What's Changed

• rework document tree by @andiwand in #452
• element capabilities and cleanup by @andiwand in #464
• post refactor cleanup by @andiwand in #465
• cleanup more by @andiwand in #466
• cleanup pdf by @andiwand in #467
• handle docx line break by @andiwand in #470

Full Changelog: v5.1.3...v5.2.0