修改样式：增加dropdown-item奇偶行背景色，以及dropdown-footer背景色

Bootstrap.Admin/wwwroot/css/site.css

@@ -113,6 +113,9 @@ a, a:hover, a:focus {
 
 .nav .dropdown-footer {
     padding: 6px 0;
+    background-color: #f1f2f7;
+    border-bottom-left-radius: 4px;
+    border-bottom-right-radius: 4px;
 }
 
 .nav .dropdown-item {
@@ -122,6 +125,10 @@ a, a:hover, a:focus {
     font-size: 0.75rem;
 }
 
+    .nav .dropdown-item:nth-of-type(odd) {
+        background-color: #F7F8F9;
+    }
+
     .nav .dropdown-item:hover {
         background-color: #93c9e8;
     }
@@ -280,11 +287,14 @@ label.dropdown-item:first-child {
 .cache-item {
     display: flex;
     align-items: center;
-    padding: 6px 4px 10px 4px;
-    margin-bottom: 4px;
+    padding: 10px 4px;
     border-bottom: 1px solid #EBEBEB;
 }
 
+    .cache-item:nth-of-type(odd) {
+        background-color: #F7F8F9;
+    }
+
     .cache-item:last-child {
         border-bottom: none;
     }