fix(ui): 将确认按钮文本统一修改为添加

修改appDialog.vue和aidia.vue中的确认按钮文本，从"确认"改为"添加"，保持界面文本一致性

src/components/pages/pptEasy/commpont/aidia.vue

@@ -43,7 +43,7 @@
                 <div v-html="lang.ssSelectedCourse.replace(/\*/g, '<span class=&quot;orange_number&quot;>' + selectedCourseList.length + '</span>')"></div>
                 <div class="confirm_btn" @click="confirmAddCourse">
                     <img src="../../../../assets/stuImg/ai6dui.svg" alt="">
-                    {{ lang.ssConfirm }}
+                    {{ lang.ssAdd }}
                 </div>
             </div>
         </el-dialog>

src/components/pages/pptEasy/dialog/appDialog.vue

@@ -162,7 +162,7 @@
         <div v-html="lang.ssSelectedApp.replace(/\*/g, '<span class=&quot;orange_number&quot;>' + selectAppList.length + '</span>')"></div>
         <div class="confirm_btn" @click="checkAppJson">
           <img src="../../../../assets/stuImg/ai6dui.svg" alt="">
-          {{ lang.ssConfirm }}
+          {{ lang.ssAdd }}
         </div>
       </div>
     </el-dialog>