fix: 优化等待弹窗交互、人脸数据刷新及相机暂停逻辑

- BaseActivity: 等待对话框允许点击外部区域关闭
- LoginByFaceActivity: 恢复暂停相机时的预览帧处理
- PlcSettingActivity: 人脸数据更新成功后刷新人脸列表

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/src/main/java/com/sw/platecabinet/activity/BaseActivity.kt

@@ -256,6 +256,7 @@ abstract class BaseActivity<VB : ViewBinding> : AppCompatActivity() {
             mDialogWaiting = CustomLoadingDialog(this, view, R.style.MyDialog)
             mDialogWaiting!!.show()
             mDialogWaiting!!.setCancelable(true)
+            mDialogWaiting!!.setCanceledOnTouchOutside(true)
         }
     }