Honour renderSettings' default font.

This still leaves a few things out in the cold,
such as hit-testing and polygon generation.
But at least it allows us to plot with a default
font.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/19031

(cherry picked from commit e230d5164d)

common/plotters/common_plot_functions.cpp

@@ -136,15 +136,9 @@ void PlotDrawingSheet( PLOTTER* plotter, const PROJECT* aProject, const TITLE_BL
         case WSG_TEXT_T:
         {
             DS_DRAW_ITEM_TEXT* text = (DS_DRAW_ITEM_TEXT*) item;
-            KIFONT::FONT*      font = text->GetFont();
+            KIFONT::FONT*      font = text->GetDrawFont( settings );
             COLOR4D            color = plotColor;
 
-            if( !font )
-            {
-                font = KIFONT::FONT::GetFont( settings->GetDefaultFont(), text->IsBold(),
-                                              text->IsItalic() );
-            }
-
             if( plotter->GetColorMode() && text->GetTextColor() != COLOR4D::UNSPECIFIED )
                 color = text->GetTextColor();
 
@@ -154,8 +148,8 @@ void PlotDrawingSheet( PLOTTER* plotter, const PROJECT* aProject, const TITLE_BL
                            text->GetTextAngle(), text->GetTextSize(), text->GetHorizJustify(),
                            text->GetVertJustify(), penWidth, text->IsItalic(), text->IsBold(),
                            text->IsMultilineAllowed(), font, text->GetFontMetrics() );
-        }
             break;
+        }
 
         case WSG_POLY_T:
         {