Bug 1288888 - followup: also fix filter icon for JSONViewer. r=me DONTBUILD

MozReview-Commit-ID: RrHyIjOC4e

devtools/client/jsonview/css/search-box.css

@@ -10,7 +10,7 @@
   height: 18px;
   font: message-box;
   background-color: var(--theme-body-background);
-  background-image: url("chrome://devtools/skin/images/filter.svg");
+  background-image: url("chrome://devtools/skin/images/filter.svg#filterinput");
   background-repeat: no-repeat;
   background-position: 2px center;
   border: 1px solid var(--theme-splitter-color);

devtools/client/shared/components/tabs/tabs.css

@@ -16,6 +16,10 @@
   margin: 0;
 }
 
+.tabs .tabs-menu-item {
+  display: inline-block;
+}
+
 .tabs .tabs-menu-item a {
   display: block;
   color: #A9A9A9;