Fix window creation failures on Mac (most noteable in CI) (#5809)

Allow window to be larger than screen on mac as well, fixing tests

src/main.ts

@@ -58,7 +58,6 @@ console.log('Environment vars', process.env)
 console.log('Parsed CLI args', args)
 
 /// Register our application to handle all "zoo-studio:" protocols.
-const singleInstanceLock = app.requestSingleInstanceLock()
 if (process.defaultApp) {
   if (process.argv.length >= 2) {
     app.setAsDefaultProtocolClient(ZOO_STUDIO_PROTOCOL, process.execPath, [
@@ -73,8 +72,11 @@ if (process.defaultApp) {
 // Must be done before ready event.
 // Checking against this lock is needed for Windows and Linux, see
 // https://www.electronjs.org/docs/latest/tutorial/launch-app-from-url-in-another-app#windows-and-linux-code
-if (!singleInstanceLock && !IS_PLAYWRIGHT) {
+if (!IS_PLAYWRIGHT) {
+  const singleInstanceLock = app.requestSingleInstanceLock()
+  if (!singleInstanceLock) {
     app.quit()
+  }
 } else {
   registerStartupListeners()
 }
@@ -89,6 +91,7 @@ const createWindow = (pathToOpen?: string, reuse?: boolean): BrowserWindow => {
     newWindow = new BrowserWindow({
       autoHideMenuBar: false,
       show: false,
+      enableLargerThanScreen: true,
       width: 1800,
       height: 1200,
       webPreferences: {
@@ -197,6 +200,8 @@ app.on('window-all-closed', () => {
 // initialization and is ready to create browser windows.
 // Some APIs can only be used after this event occurs.
 app.on('ready', (event, data) => {
+  // Avoid potentially 2 ready fires
+  if (mainWindow) return
   // Create the mainWindow
   mainWindow = createWindow()
 })