Fixing some missing settings for the new widget

Author: goettlic

DataPlotly/core/plot_settings.py

@@ -154,7 +154,7 @@ def __init__(self, plot_type: str = 'scatter', properties: dict = None, layout:
             'line_dash_threshold': 'dot',
             'threshold_value': 1,
             'threshold': False,
-            'scatterline_interpolation_combo': 'linear'
+            'interpolation_shape': 'linear'
         }
 
         # layout nested dictionary

DataPlotly/gui/plot_settings_widget.py

@@ -943,6 +943,7 @@ def refreshWidgets(self):  # pylint: disable=too-many-statements,too-many-branch
             self.show_lines_check: ['contour'],
             self.scatterline_gaps_check: ['scatter'],
             self.skip_null_values_check: ['scatter', 'bar', 'contour', 'polar', 'filledline'],
+            self.scatterline_interpolation_label: ['scatter'],
             self.scatterline_interpolation_combo: ['scatter'],
             # layout customization
             self.show_legend_check: ['all'],
@@ -1451,7 +1452,7 @@ def set_settings(self, settings: PlotSettings):  # pylint: disable=too-many-stat
         self.threshold_value.setValue(settings.properties.get('threshold_value', 1))     
         self.fill.setChecked(settings.properties.get('fill', False))
         self.scatterline_gaps_check.setChecked(settings.properties.get('connect_gaps',False))
-        self.scatterline_interpolation_label.setCurrentText(settings.properties.get('interpolation_shape', 'linear'))
+        self.scatterline_interpolation_combo.setCurrentText(settings.properties.get('interpolation_shape', 'linear'))
 
     def create_plot_factory(self) -> PlotFactory:
         """