Norwegian (nb) translation update

Author: FTno

app/src/main/res/values-nb/strings.xml

@@ -881,6 +881,11 @@
     <string name="configLabel_ui_showdatasource">Vis datakilde</string>
     <string name="configLabel_ui_showdatasource_summary">Vis en påskrift som angir den gjeldende innstillingen.</string>
 
+    <!-- App Setting: show headers -->
+    <string name="configLabel_ui_showheaders">Overskrifter</string>              <!-- group title -->
+    <string name="configLabel_ui_showheader_icon">Vis overskriftsikon</string> <!-- checkbox label -->
+    <string name="configLabel_ui_showheader_text">Vis overskriftstekst</string> <!-- checkbox label -->
+
     <!-- App Setting: show golden hour -->
     <string name="configLabel_ui_showgoldhour">Gylne time</string>