Add dev menu to import local backup

ts/windows/main/phase1-ipc.ts

@@ -279,6 +279,10 @@ ipc.on('set-up-as-standalone', () => {
   window.Whisper.events.trigger('setupAsStandalone');
 });
 
+ipc.on('stage-local-backup-for-import', () => {
+  window.Whisper.events.trigger('stageLocalBackupForImport');
+});
+
 ipc.on('challenge:response', (_event, response) => {
   window.Whisper.events.trigger('challengeResponse', response);
 });

ts/windows/main/preload_test.ts

@@ -115,6 +115,7 @@ window.testUtilities = {
         development: false,
         devTools: false,
         includeSetup: false,
+        isNightly: false,
         isProduction: false,
         platform: 'test',
       },