Fix App and App Check headers for doxygen (#1339)

* Ignore the deleted constructors for doxygen

* Fix app documentation

* Update app.h

* Update app.h

Author: a-maurice

app/src/include/firebase/app.h

@@ -572,9 +572,10 @@ class App {
   static App* GetInstance(const char* name);
 
 #if !defined(DOXYGEN)
+  // Hidden from the public documentation for now
   /// Get all the apps, including the default one.
   static std::vector<App*> GetApps();
-#endif  //! defined(DOXYGEN), to hide the api from public documentation.
+#endif  // !defined(DOXYGEN)
 
 #ifndef SWIG
 // <SWIG>

app_check/src/include/firebase/app_check/app_attest_provider.h

@@ -28,8 +28,10 @@ class AppAttestProviderFactoryInternal;
 /// AppAttestProviders. This is the default implementation.
 class AppAttestProviderFactory : public AppCheckProviderFactory {
  public:
+#if !defined(DOXYGEN)
   AppAttestProviderFactory(const AppAttestProviderFactory&) = delete;
   AppAttestProviderFactory& operator=(const AppAttestProviderFactory&) = delete;
+#endif  // !defined(DOXYGEN)
 
   /// Gets an instance of this class for installation into a
   /// firebase::app_check::AppCheck instance.

app_check/src/include/firebase/app_check/debug_provider.h

@@ -36,9 +36,11 @@ class DebugAppCheckProviderFactoryInternal;
 /// NOTE: Do not use the debug provider in applications used by real users.
 class DebugAppCheckProviderFactory : public AppCheckProviderFactory {
  public:
+#if !defined(DOXYGEN)
   DebugAppCheckProviderFactory(const DebugAppCheckProviderFactory&) = delete;
   DebugAppCheckProviderFactory& operator=(const DebugAppCheckProviderFactory&) =
       delete;
+#endif  // !defined(DOXYGEN)
 
   /// Gets an instance of this class for installation into a
   /// firebase::app_check::AppCheck instance.

app_check/src/include/firebase/app_check/device_check_provider.h

@@ -28,9 +28,11 @@ class DeviceCheckProviderFactoryInternal;
 /// DeviceCheckProviders. This is the default implementation.
 class DeviceCheckProviderFactory : public AppCheckProviderFactory {
  public:
+#if !defined(DOXYGEN)
   DeviceCheckProviderFactory(const DeviceCheckProviderFactory&) = delete;
   DeviceCheckProviderFactory& operator=(const DeviceCheckProviderFactory&) =
       delete;
+#endif  // !defined(DOXYGEN)
 
   /// Gets an instance of this class for installation into a
   /// firebase::app_check::AppCheck instance.

app_check/src/include/firebase/app_check/play_integrity_provider.h

@@ -28,9 +28,11 @@ class PlayIntegrityProviderFactoryInternal;
 /// PlayIntegrityProviders. This is the default implementation.
 class PlayIntegrityProviderFactory : public AppCheckProviderFactory {
  public:
+#if !defined(DOXYGEN)
   PlayIntegrityProviderFactory(const PlayIntegrityProviderFactory&) = delete;
   PlayIntegrityProviderFactory& operator=(const PlayIntegrityProviderFactory&) =
       delete;
+#endif  // !defined(DOXYGEN)
 
   /// Gets an instance of this class for installation into a
   /// firebase::app_check::AppCheck instance.