Doc: QtCore: Fix more documentation warnings

* Omit 'Bluetooth' enum value in QPermission::PermisionType (sic)
    as that seems to be unimplemented.

  * Comment out \sa links to internal/undocumented functions.

  * Fix incomplete template parameters in \fn commands for
    QProperty methods.

Task-number: QTBUG-93995
Change-Id: Ic8e63fca22c9c72325c76f90f537b221f56ebace
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

src/corelib/global/qglobal.cpp

@@ -3871,7 +3871,7 @@ bool qunsetenv(const char *varName)
     \relates <QtGlobal>
     \since 6.2
 
-    Converts the enumerator \e to the equivalent value expressed in its
+    Converts the enumerator \a e to the equivalent value expressed in its
     enumeration's underlying type.
 */
 

src/corelib/kernel/qpermission.qdoc

@@ -74,6 +74,8 @@
     \value WriteCalendar Write to the user's calendar.
            Maps to \c "android.permission.WRITE_CALENDAR" on Android.
 
+    \omitvalue Bluetooth
+
     \note Both Android and iOS require the native permission values to be added
     to the \c AndroidManifest.xml and \c info.plist respectively. For more
     information on Android permissions, see \c {Qt Creator: Editing Manifest Files}.

src/corelib/kernel/qproperty.cpp

@@ -1001,7 +1001,7 @@ QString QPropertyBindingError::description() const
 
   \return \c true when the binding was successfully set.
 
-  \sa QUntypedPropertyBinding::valueMetaType()
+  //! \sa QUntypedPropertyBinding::valueMetaType()
 */
 
 /*!
@@ -1017,7 +1017,7 @@ QString QPropertyBindingError::description() const
   Returns the metatype of the property from which the QUntypedBindable was created.
   If the bindable is invalid, an invalid metatype will be returned.
 
-  \sa isValid(), QUntypedPropertyBinding::valueMetaType()
+  \sa isValid() //!, QUntypedPropertyBinding::valueMetaType()
 */
 
 /*!
@@ -1287,7 +1287,7 @@ QString QPropertyBindingError::description() const
 */
 
 /*!
-  \fn QPropertyNotifier QProperty<T>::addNotifier(Functor f)
+  \fn template <typename T> template <typename Functor> QPropertyNotifier QProperty<T>::addNotifier(Functor f)
 
   Subscribes the given functor \a f as a callback that is called whenever
   the value of the property changes.
@@ -1628,7 +1628,7 @@ QString QPropertyBindingError::description() const
   \note If this property has a binding (i.e. hasBinding() returns true), that binding is not reevaluated when
   notify() is called. Any binding depending on this property is still reevaluated as usual.
 
-  \sa Qt::beginProperytUpdateGroup(), setValueBypassingBindings()
+  \sa Qt::beginPropertyUpdateGroup(), setValueBypassingBindings()
 */
 
 /*!
@@ -1973,7 +1973,7 @@ QString QPropertyBindingError::description() const
 */
 
 /*!
-  \fn template <typename T> QPropertyNotifier QPropertyAlias<T>::addNotifier(Functor f)
+  \fn template <typename T> template <typename Functor> QPropertyNotifier QPropertyAlias<T>::addNotifier(Functor f)
 
   Subscribes the given functor \a f as a callback that is called whenever
   the value of the aliased property changes.

src/corelib/platform/android/qandroidextras.cpp

@@ -739,7 +739,7 @@ QAndroidIntent::QAndroidIntent(const QString &action)
         auto serviceIntent = QAndroidIntent(QtAndroidPrivate::androidActivity().object(), "com.example.MyService");
     \endcode
 
-    \sa QtAndroidPrivate::androidActivity, QtAndroidPrivate::bindService
+    \sa QtAndroidPrivate::bindService
  */
 QAndroidIntent::QAndroidIntent(const QJniObject &packageContext, const char *className)
     : m_handle("android/content/Intent", "(Landroid/content/Context;Ljava/lang/Class;)V",

src/corelib/platform/android/qandroidnativeinterface.cpp

@@ -178,7 +178,7 @@ void QNativeInterface::QAndroidApplication::hideSplashScreen(int duration)
     \note Becareful about the type of operations you do on the Android's main
     thread, as any long operation can block the app's UI rendering and input
     handling. If the function is expected to have long execution time, it's
-    also good to use a \l QDeadlineTimer() in your \a runnable to manage
+    also good to use a \l QDeadlineTimer in your \a runnable to manage
     the execution and make sure it doesn't block the UI thread. Usually,
     any operation longer than 5 seconds might block the app's UI. For more
     information, see \l {Android: Keeping your app responsive}{Keeping your app responsive}.