v3.9.1

Description

Improved export reliability, file workflows, diagram insertion, shared-document safety, and browser compatibility.

• PDF & Print: Hid diagram toolbars from PDF output, kept browser PDF exports on a readable light background in every theme, and used the active tab name for browser print exports.
• Files & Tabs: Added multi-file Markdown drag-and-drop imports and a direct Markdown download action for the active tab.
• Diagrams & Templates: Reorganized the diagram picker into clearer categories, refined its sidebar and thumbnails, expanded STL and map examples, isolated WaveDrom SVG styles, and improved diagram rendering compatibility across browsers.
• Sharing & Offline Use: Polished Share Snapshot access resets and allowed external Markdown images to load correctly through the service worker.

What's Changed

• fix: hide diagram toolbars during PDF export (#204) by @rajat12826 in #208
• docs(wiki): update documentation and SEO wording by @ThisIs-Developer in #209
• fix(import): support multi-file markdown drops by @ThisIs-Developer in #210
• feat(diagrams): group insert diagram categories by @ThisIs-Developer in #211
• fix(security): harden audit remediations by @ThisIs-Developer in #213

New Contributors

• @rajat12826 made their first contribution in #208

Full Changelog: v3.9.0...v3.9.1