Bug 1581283 - Remove focus rect around the search result list. r=Honza.

Differential Revision: https://phabricator.services.mozilla.com/D47517

--HG--
extra : moz-landing-system : lando

devtools/client/netmonitor/src/assets/styles/search.css

@@ -13,11 +13,13 @@
   width: 100%;
   height: 100%;
   overflow: auto;
+  outline: 0 !important;
 }
 
 .search-panel .treeTable {
   width: 100%;
   color: var(--table-text-color);
+  outline: 0 !important;
 }
 
 /* Custom tree styles for the Search results panel*/
@@ -30,6 +32,10 @@
   color: var(--theme-text-color-inactive);
 }
 
+.search-panel .treeTable tbody {
+  outline: 0 !important;
+}
+
 .search-panel .treeTable .resultLabel {
   font-weight: bold;
 }