Semantic Model Viewer v0.3.9

What's Changed

• Include Power Query in offline HTML snapshots by @MrPerfectH in #61
• Add optional parchment Spellbook theme by @MrPerfectH in #63
• Release extension 0.3.9 with Spellbook theme by @MrPerfectH in #73

Full Changelog: v0.3.8...v0.3.9