Bug: 2044194 Port client-side KDE mode detection from kde-widget into CommonGraph#1045

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Commits on Jun 1, 2026

add client-side mode-detection helpers to kde.js (ported from kde-widget)
kala-moz
committed
wire client-side mode detection into CommonGraph: valley-depth slider, mode-line overlays, peak labels (ported from kde-widget)
kala-moz
committed

Commits on Jun 3, 2026

add tests for scatter tooltip and y-axis label formatters in CommonGraph
kala-moz
committed