Make the toolbar warning timeout configurable

Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/2589

src/js/background.js

@@ -82,6 +82,7 @@ const hiddenSettingsDefault = {
     requestJournalProcessPeriod: 1000,
     selfieAfter: 2,
     strictBlockingBypassDuration: 120,
+    toolbarWarningTimeout: 60,
     uiPopupConfig: 'unset',
     uiStyles: 'unset',
     updateAssetBypassBrowserCache: false,

src/js/traffic.js

@@ -1133,7 +1133,7 @@ const webRequest = {
                     urls: [ 'http://*/*', 'https://*/*' ]
                 }
             );
-            vAPI.defer.once({ min: 1 }).then(( ) => {
+            vAPI.defer.once({ sec: µb.hiddenSettings.toolbarWarningTimeout }).then(( ) => {
                 if ( vAPI.net.hasUnprocessedRequest() === false ) { return; }
                 vAPI.net.removeUnprocessedRequest();
                 return vAPI.tabs.getCurrent();