fix(用例评审): 调整评审用例关联页面样式错乱问题

--bug=1047306 --user=宋昌昌 【用例评审】-评审关联用例界面的确定按钮和搜索框靠太近了 https://www.tapd.cn/55049933/s/1605518

test-track/frontend/src/business/review/view/components/TestReviewRelevance.vue

@@ -283,7 +283,7 @@ export default {
       ],
       selectCounts: null,
       isFullScreen: false,
-      screenHeight: "calc(100vh - 420px)",
+      screenHeight: "calc(100vh - 370px)",
     };
   },
   props: {
@@ -561,7 +561,7 @@ export default {
 }
 
 .case-content {
-  padding: 0px 20px;
+  padding: 12px 20px;
   height: 100%;
   /*border: 1px solid #EBEEF5;*/
 }