missing translation keys

[WillyKirchner]

Hello,
While using the chart editor, i found out that these two expressions can't be translated. This could be fixed by changing them into strings.

react-chart-editor/src/components/fields/ColorPicker.js

Line 20 in c0586bb

This color is computed from other parts of the figure but you can{' '}

react-chart-editor/src/components/fields/DataSelector.js

Line 132 in c0586bb

placeholder={this.hasData ? 'Data inlined in figure' : 'Choose data...'}