Usage

@display.LineChart(display.LineChartProps{
    Title:  "Monthly Active Users",
    Height: 220,            // SVG height in px (default 220)
    Labels: []string{"Jan", "Feb", "Mar"},
    Series: []display.LineChartSeries{
        {
            Label:  "Users",
            Points: []float64{1200, 1900, 1500},
            Color:  "#3b82f6",
            Fill:   true,  // shade area under line
        },
    },
})