Ensure font family are applied to all visualizations using echarts in SDK

[heypoom]

We should double-check that echarts-based visualizations in embedding SDK are applying font family settings correctly.

Blockers

Beta Give feedback

1. Allow overriding font in SDK #42341 Needed for Font Families to work.

Cases to check

• Metabase font families. Set theme.fontFamily to one of our supported fonts (e.g. Inter)
• Custom font family. Set theme.fontFamily in the SDK to `"Custom". Upload a custom font in the admin settings, and apply the custom font.

Visualizations to check

• Cartesian Charts
  • Line Chart
  • Area Chart
  • Bar Chart
  • Funnel
  • Waterfall Chart
  • Scatter Plot
• Combo Charts

Example elements to check

• Axis Labels
• Axis Values
• Values on Data Points (value above or within each bars in bar charts)
• Goal Line Label

Out of scope visualizations (not echarts)

• Pie Chart (using D3.js)

[heypoom]

@albertoperdomo @NevRA Here are the test results. I think font family is applied to all vis already including Visx and D3 ones, so we are good to close this.

✅ Cartesian Charts: Line, Area and Bar charts

✅ Row Chart

✅ Pie Chart

✅ Scalar & Smart Scalar

✅ Funnel

✅ Waterfall

⛔ Pivot table does not render at all, cannot test. Will have to fix that.