Merge ~deadlight/maas:filter-selected-cross into ~deadlight/maas:vanilla

[Karl Williams]

Added crosses to selected node filters

QA:
 - Go to 'nodes'
 - Select some filters
 - See that they now have a cross when selected

[Anthony Dillon (ya-bo-ng)]

LGTM Checked on FF and Chrome

review: Approve

diff --git a/src/maasserver/static/scss/_maas.scss b/src/maasserver/static/scss/_maas.scss
index 6b4358d..c6d8dc1 100644
--- a/src/maasserver/static/scss/_maas.scss
+++ b/src/maasserver/static/scss/_maas.scss
@@ -244,11 +244,17 @@
   .col-12 {
     width: 100%;
   }
-  
+
   // Can be removed when the settings section is updated
   .errorlist {
     list-style: none;
     display: inline-block;
     margin-left: 0;
   }
+
+  // Sidebar selected state
+  .sidebar__second-level .is-active {
+    background: transparent url('../assets/images/89c10794-remove.svg') top $sp-small right $sp-large no-repeat;
+    background-size: 12px;
+  }
 }