fix(pptEasy): 修复英文站点url适配逻辑

将原有的en语言判断改为com，适配海外英文站点的正确接口域名

src/components/pages/pptEasy/addCourse3.vue

@@ -2880,7 +2880,7 @@ export default {
       else if (this.lang.lang === 'hk') {
         url = 'https://pbl.cocorobo.hk'
       }
-      else if (this.lang.lang === 'en') {
+      else if (this.lang.lang === 'com') {
         url = 'https://pbl.cocorobo.com'
       }
 

src/components/pages/pptEasy/addCoursePS.vue

@@ -2880,7 +2880,7 @@ export default {
       else if (this.lang.lang === 'hk') {
         url = 'https://pbl.cocorobo.hk'
       }
-      else if (this.lang.lang === 'en') {
+      else if (this.lang.lang === 'com') {
         url = 'https://pbl.cocorobo.com'
       }