saveAppState needs to be called to perform the quit (was only missing from the lastWindowClosed case)

Unintentionally introduced with 40abc0c#diff-2018087f584c4398b5c3a23fc0e5f9dbR172
True needs to be passed, because the last known window state is saved, so receivedAllWindows is always false

Fixes #8629

Auditors: @bridiver

Author: bsclifton

app/index.js

@@ -181,6 +181,7 @@ const initiateSessionStateSave = () => {
     // quit triggered by window-all-closed should save last window state
     if (lastWindowClosed && lastWindowState) {
       perWindowState.push(lastWindowState)
+      saveAppState(true)
     } else if (BrowserWindow.getAllWindows().length > 0) {
       ++requestId
       BrowserWindow.getAllWindows().forEach((win) => win.webContents.send(messages.REQUEST_WINDOW_STATE, requestId))