添加形状显示开关，修改默认参数

src/export/spineExportSettings.ts

@@ -20,7 +20,7 @@ export function defaultSpineExportSettings(): SpineExportSettings {
   return {
     imagesPath: './images/',
     spineVersion: '4.2',
-    keyframeCurve: 'linear',
+    keyframeCurve: 'bezier',
     fps: 30,
     omitFps: false,
     integerFrameAlignment: true,