Fix: Don't implicitly ReInit all windows after updating the character width cache.

This caused duplicate ReInit when changing interface scale.

src/gfx.cpp

@@ -1391,8 +1391,6 @@ void LoadStringWidthTable(bool monospace)
 			_stringwidth_table[fs][i] = GetGlyphWidth(fs, i + 32);
 		}
 	}
-
-	ReInitAllWindows(false);
 }
 
 /**

src/settings_table.cpp

@@ -270,6 +270,7 @@ static void ZoomMinMaxChanged(int32_t)
 		_gui_zoom = _settings_client.gui.zoom_min;
 		UpdateCursorSize();
 		LoadStringWidthTable();
+		ReInitAllWindows(true);
 	}
 }