fix(chord chart): fix global nut text color configuration

Make sure the global nut text color is applied for all fingers. Before this fix the global nut text
color was only applied on barre chords.

fix #47

src/svguitar.ts

@@ -678,11 +678,6 @@ export class SVGuitarChord {
         ],
       )
       .forEach(([stringIndex, fretIndex, textOrOptions]) => {
-        // const nutCenterX = x + stringIndex * stringSpacing
-        // const startX = size / 2;
-        // const nutCenterY = y + fretIndex * fretSpacing - fretSpacing / 2;
-        // const startY = nutCenterY - size / 2
-        //
         const nutCenterX = startX + stringIndex * stringSpacing
         const nutCenterY = y + fretIndex * fretSpacing - fretSpacing / 2
         const fingerOptions = SVGuitarChord.getFingerOptions(textOrOptions)
@@ -743,7 +738,8 @@ export class SVGuitarChord {
     fingerOptions: FingerOptions,
   ) {
     const shape = fingerOptions.shape ?? defaultSettings.shape
-    const nutTextColor = fingerOptions.textColor ?? defaultSettings.nutTextColor
+    const nutTextColor =
+      fingerOptions.textColor ?? this.settings.nutTextColor ?? defaultSettings.nutTextColor
     const startX = x - size / 2
     const startY = y - size / 2