feat(frontend):成功、警告、错误等色值修改与element-ui，fit2cloud-ui一致，原先的太亮；角色i18n修复

frontend/src/styles/variables.scss

@@ -5,9 +5,9 @@
 
 /* theme color */
 $--color-primary: #0a7be0;
-$--color-success: #13ce66;
-$--color-warning: #ffba00;
-$--color-danger: #ff4949;
+$--color-success: #67C23A;
+$--color-warning: #E6A23C;
+$--color-danger: #F56C6C;
 // $--color-info: #1E1E1E;
 
 $--button-font-weight: 400;

frontend/src/views/system/role/index.vue

@@ -251,13 +251,13 @@ export default {
       this.$refs.menu.setCheckedKeys(this.menuIds)
     },
     handleDelete(row) {
-      this.$confirm(this.$t('commons.confirm_delete') + ': ' + row.name + '？', this.$t('role.tips'), {
+      this.$confirm(this.$t('role.confirm_delete') + ': ' + row.name + '？', this.$t('role.tips'), {
         confirmButtonText: this.$t('commons.confirm'),
         cancelButtonText: this.$t('commons.cancel'),
         type: 'warning'
       }).then(() => {
         delRole(row.roleId).then(res => {
-          this.$success(this.$t('commons.modify_success'))
+          this.$success(this.$t('commons.delete_success'))
           this.search()
         })
       }).catch(() => {