Writer v0.8.0

Every kind of Mermaid diagram now draws in Writer. Diagrams are rendered by Pele instead of beautiful-mermaid, which only handled six types.

• Gantt charts, pie charts, user journeys, git graphs, mindmaps, timelines, quadrant charts, Sankey, block, architecture, kanban, requirement, C4, packet, radar and treemap diagrams now render, with the same pan, zoom, fullscreen and Edit code panel.
• Diagrams follow your theme, accent and Contrast setting and recolour the moment you switch. Charts use your accent colour at different shades.
• A diagram that can't be drawn says why, with the line and column of a syntax error, instead of drawing something wrong.
• Very tall diagrams fit their frame instead of being cut off at the top and bottom.
• Links inside diagrams no longer navigate the window away from your note.
• The app's JavaScript is about 880 kB smaller.