feat: Make folder search popup ignore outside clicks, b=no-bug, c=folders, common

src/browser/base/content/zen-panels/folders-search.inc

@@ -2,7 +2,13 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-<panel id="zen-folder-tabs-popup" hidepopovertail="true" type="arrow" orient="vertical" side="left">
+<panel id="zen-folder-tabs-popup"
+    followanchor="false"
+    hidepopovertail="true"
+    type="arrow"
+    orient="vertical"
+    side="left"
+    consumeoutsideclicks="never">
   <hbox class="tabs-list-header" flex="1">
     <image class="zen-folder-tabs-list-search-icon" src="chrome://global/skin/icons/search-glass.svg"/>
     <html:input id="zen-folder-tabs-list-search" 

src/browser/base/content/zen-panels/popups.inc

@@ -8,11 +8,11 @@
       <menuitem
         data-l10n-id="zen-live-folder-github-pull-requests"
         command="cmd_zenNewLiveFolder"
-        image="chrome://browser/content/zen-images/favicons/github.svg" />
+        image="chrome://browser/skin/zen-icons/selectable/logo-github.svg" />
       <menuitem
         data-l10n-id="zen-live-folder-github-issues"
         command="cmd_zenNewLiveFolder"
-        image="chrome://browser/content/zen-images/favicons/github.svg" />
+        image="chrome://browser/skin/zen-icons/selectable/logo-github.svg" />
       <menuitem
         data-l10n-id="zen-live-folder-type-rss"
         command="cmd_zenNewLiveFolder"