v0.19.2

Adds

• SeriesChart minHeight: a plot that scales with its width is never shorter than it, by default seriesMinHeight(height) (220px, or height when less).
• An edge chip for levels: those beyond the top or bottom gather into one chip, "▲ 2 above" or "▼ 6 below", a button that lists each level's label and value under the chart.
• Exports: SERIES_CHART_MIN_HEIGHT, seriesMinHeight, layoutLevelTags, levelGroupText, and the types LevelEdge, LevelTagLayout, LevelTagWant.

Changes

• A narrow card no longer draws a plot under 100px tall.
• Level tags that cannot all fit join an edge chip ("▲ 3 more") instead of being pushed off the plot.
• A chip moves left of the latest price rather than cover it.
• Far levels no longer get a pinned tag each.