Update add new button styling

styles/components/_portfolio_layout.scss

@@ -140,16 +140,19 @@
 
   .panel {
     @include shadow-panel;
+    padding-bottom: $gap * 3;
+  }
+
+  a.add-new-button {
+    display: inherit;
+    margin-left: auto;
+    margin-right: auto;
+    max-width: 50%;
+    margin-top: 3rem;
   }
 
   .member-list {
-    .panel {
-      @include shadow-panel;
-      padding-bottom: 0;
-    }
-
     .responsive-table-wrapper {
-      padding-bottom: $gap * 3;
       margin-bottom: 0;
     }
 
@@ -158,14 +161,6 @@
       margin-top: 0;
     }
 
-    a.create-member {
-      display: inherit;
-      margin-left: auto;
-      margin-right: auto;
-      max-width: 50%;
-      margin-top: 3rem;
-    }
-
     input.usa-button.usa-button-primary {
       width: 9rem;
       height: 4rem;
@@ -244,6 +239,7 @@
 
     .panel {
       @include shadow-panel;
+      padding-bottom: 0;
     }
 
     .application-list-item {