fix(@rbc/rbc-login): 登录页图片加载失败白屏

develop/@rbc/rbc-login/src/views/login/index.vue

@@ -253,12 +253,14 @@ export default {
         bgImgCode
           ? this.getImgUrl(bgImgCode).then((url) => {
               this.loginImageBg = url
+            }).finally(() => {
               this.imgLoading -= 1
             })
           : this.imgLoading -= 1
         iconCode
           ? this.getImgUrl(iconCode).then((url) => {
               this.loginIcon = url
+            }).finally(() => {
               this.imgLoading -= 1
             })
           : this.imgLoading -= 1
@@ -267,6 +269,7 @@ export default {
         boxImgCode
           ? this.getImgUrl(boxImgCode).then((url) => {
               this.boxImgUrl = url
+            }).finally(() => {
               this.imgLoading -= 1
             })
           : this.imgLoading -= 1