<!--  As an open source project with a dedicated but small maintainer team, it can sometimes take a long time for issues to be addressed so please be patient and we will get back to you as soon as we can.
-->

### Preflight Checklist
* [x ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [x ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [x ] I have searched the issue tracker for a feature request that matches the one I want to file, without success.

### Problem Description
Following #20322 - for me as an Electron user, it's unacceptable that `second-instance` manipulates order of arguments, it's incompatible e.g. with [yargs](https://github.com/yargs/yargs) style (e.g. `myapp.exe -a 1 -b 2`). Current behaviour on Windows is confusing, not well documented.

### Proposed Solution
Although I have [described a workaround](https://github.com/electron/electron/issues/20322#issuecomment-617773983), I would like Electron to somehow overcome Chromium deficiency and pass the original `argv` to the `second-instance` event or pass any custom data comfortably.

I think the best solution could be by adding a string only param msg to `app.requestSingleInstanceLock(msg)` and the [`second-instance`](https://www.electronjs.org/docs/api/app#event-second-instance) would returns the fourth value `msg`.

Other solution may be:
1. `second-instance` would get the original `argv`, not the Chromium one. 
2. If a user pass a custom data `app.requestSingleInstanceLock(argv)`, then the `second-instance` would return this custom data as `argv`, probably processed by `JSON.parse(JSON.stringify(argv))`.

shell/browser/api/electron_api_app.h
void DisableHardwareAcceleration(gin_helper::ErrorThrower thrower);
  void DisableDomainBlockingFor3DAPIs(gin_helper::ErrorThrower thrower);
  bool IsAccessibilitySupportEnabled();
  void SetAccessibilitySupportEnabled(gin_helper::ErrorThrower thrower,
                                      bool enabled);
  Browser::LoginItemSettings GetLoginItemSettings(gin::Arguments* args);
#if defined(USE_NSS_CERTS)
  void ImportCertificate(gin_helper::ErrorThrower thrower,
                         base::Value options,
                         net::CompletionOnceCallback callback);
#endif
  v8::Local<v8::Promise> GetFileIcon(const base::FilePath& path,
                                     gin::Arguments* args);
  std::vector<gin_helper::Dictionary> GetAppMetrics(v8::Isolate* isolate);
  v8::Local<v8::Value> GetGPUFeatureStatus(v8::Isolate* isolate);
  v8::Local<v8::Promise> GetGPUInfo(v8::Isolate* isolate,
                                    const std::string& info_type);
  void EnableSandbox(gin_helper::ErrorThrower thrower);
  void SetUserAgentFallback(const std::string& user_agent);
  std::string GetUserAgentFallback();
#if defined(OS_MAC)
  void SetActivationPolicy(gin_helper::ErrorThrower thrower,
                           const std::string& policy);
  bool MoveToApplicationsFolder(gin_helper::ErrorThrower, gin::Arguments* args);
  bool IsInApplicationsFolder();
  v8::Local<v8::Value> GetDockAPI(v8::Isolate* isolate);
  bool IsRunningUnderRosettaTranslation() const;
  v8::Global<v8::Value> dock_;
#endif
#if defined(OS_MAC) || defined(OS_WIN)