Decrease font error allowance

This is activated when changing bezier into segments and sets the
minimum allowance in 1/16 of the font's internal units.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/18300

common/advanced_config.cpp

@@ -257,7 +257,7 @@ ADVANCED_CFG::ADVANCED_CFG()
 
     m_PcbSelectionVisibilityRatio = 1.0;
 
-    m_FontErrorSize             = 16;
+    m_FontErrorSize             = 2;
 
     m_OcePluginLinearDeflection = 0.14;
     m_OcePluginAngularDeflection = 30;

include/advanced_config.h

@@ -514,7 +514,7 @@ public:
      *
      * Setting name: "FontErrorSize"
      * Valid values: 0.01 to 100
-     * Default value: 8
+     * Default value: 2
      */
     double m_FontErrorSize;