Doc: Fix documentation issues

Qt gRPC:

  * Add dependencies to qtdoc, qtcmake to get working navigation links.
  * Add C++ module page.
  * Move \since command to the \module page to have since information
    for classes.
  * Add a \qtcmakepackage for the \module.
  * Comment out navigation information for QML types as those don't
    exist.

Qt Protobuf:

  * Create a preliminary landing page and move information from the
    module page to it.
  * Add dependencies to qtdoc, qtcmake docs.
  * Add \since, \brief information for the module page.
  * Fix issues in internal class documentation.
  * Comment out navigation information for QML types.

Set both modules to 'Technical Preview' state.

Pick-to: 6.5
Task-number: QTBUG-109503
Change-Id: Iab99ad3df373373d6f15c4d71d42df71d2d5ab62
Reviewed-by: Konrad Kujawa <konrad.kujawa@qt.io>
Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>

src/grpc/doc/index.qdoc

@@ -2,9 +2,8 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
 /*!
     \page qtgrpc-index.html
-    \since 6.5
     \title Qt gRPC
-    \brief Provides a gRPC
+    \brief Provides a gRPC.
 
     \section1 Licenses
 

src/grpc/doc/qtgrpc.qdocconf

@@ -27,19 +27,17 @@ qhp.QtGrpc.subprojects.classes.indexTitle = Qt gRPC C++ Classes
 qhp.QtGrpc.subprojects.classes.selectors  = class doc:headerfile
 qhp.QtGrpc.subprojects.classes.sortPages  = true
 
-depends += qtcore qtnetwork
+depends += qtdoc qtcore qtnetwork qtcmake
 
-headerdirs  += ..
-
-sourcedirs  += ..
+{headerdirs,sourcedirs}  += ..
 
 exampledirs +=  ../../../examples/grpc
 
 imagedirs   += images
 
 navigation.landingpage = "Qt gRPC"
-navigation.qmltypespage = "Qt gRPC QML Types"
 navigation.cppclassespage = "Qt gRPC C++ Classes"
+#navigation.qmltypespage = "Qt gRPC QML Types"
 
 tagfile                 = qtgrpc.tags
 

src/grpc/doc/src/qtgrpc-module.qdoc

@@ -0,0 +1,11 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+/*!
+    \module QtGrpc
+    \modulestate Technical Preview
+    \title Qt gRPC C++ Classes
+    \qtcmakepackage Grpc
+    \since 6.5
+
+    \brief Provides gRPC support for Qt.
+*/

src/protobuf/doc/qtprotobuf.qdocconf

@@ -27,21 +27,18 @@ qhp.QtProtobuf.subprojects.classes.indexTitle = Qt Protobuf C++ Classes
 qhp.QtProtobuf.subprojects.classes.selectors  = class doc:headerfile
 qhp.QtProtobuf.subprojects.classes.sortPages  = true
 
-depends += qtcore
+depends += qtdoc qtcore qtcmake
 
-headerdirs  += ..
-
-sourcedirs  += src \
-               .. \
-               ../../tools/qtprotobufgen/doc/src
+{headerdirs,sourcedirs} += ..
+sourcedirs += ../../tools/qtprotobufgen/doc/src
 
 exampledirs +=  ../../../examples/protobuf
 
 imagedirs   += images
 
 navigation.landingpage = "Qt Protobuf"
-navigation.qmltypespage = "Qt Protobuf QML Types"
 navigation.cppclassespage = "Qt Protobuf C++ Classes"
+#navigation.qmltypespage = "Qt Protobuf QML Types"
 
 tagfile                 = qtprotobuf.tags
 

src/protobuf/doc/src/qtprotobuf.qdoc

@@ -2,13 +2,10 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
 
 /*!
-    \module QtProtobuf
-    \title Protocol Buffers Support in Qt
-    \brief An overview of Protobuf support in Qt.
-
-    \ingroup frameworks-technologies
-
     \keyword Protobuf
+    \page qtprotobuf-index.html
+    \title Qt Protobuf
+    \ingroup frameworks-technologies
 
     Qt provides a generator which can be used to generate Qt-based classes
     from \c{.proto} files. These generated classes can then be used to serialize
@@ -18,4 +15,19 @@
     \list
         \li \l{CMake Commands in Qt6 Protobuf}
     \endlist
+
+    \section1 Reference Documentation
+
+    \list
+        \l {Qt Protobuf C++ Classes}{C++ Classes}
+    \endlist
+*/
+
+/*!
+    \module QtProtobuf
+    \modulestate Technical Preview
+    \title Qt Protobuf C++ Classes
+    \qtcmakepackage Protobuf
+    \since 6.5
+    \brief Provides protocol buffers support in Qt.
 */

src/protobuf/qtprotobuftypes.cpp

@@ -305,7 +305,6 @@ QT_IMPL_METATYPE_EXTERN_TAGGED(QtProtobuf::sfixed32, QtProtobuf_sfixed32)
 QT_IMPL_METATYPE_EXTERN_TAGGED(QtProtobuf::sfixed64, QtProtobuf_sfixed64)
 
 /*!
-    \inmodule QtProtobuf
     \enum QtProtobuf::WireTypes
     \brief The WireTypes enumeration reflects protobuf default wiretypes.
 
@@ -324,8 +323,8 @@ QT_IMPL_METATYPE_EXTERN_TAGGED(QtProtobuf::sfixed64, QtProtobuf_sfixed64)
 */
 
 /*!
-    \inmodule QtProtobuf
     \class QProtobufPropertyOrderingInfo
+    \inmodule QtProtobuf
     \internal
     \brief Holds a property's index in the property system, and the json_name.
 
@@ -352,8 +351,10 @@ QT_IMPL_METATYPE_EXTERN_TAGGED(QtProtobuf::sfixed64, QtProtobuf_sfixed64)
 */
 
 /*!
-    \class template<typename T, int = 0> struct QtProtobuf::transparent
-    \internal Only used to create new, unique types for numeric types.
+    \struct QtProtobuf::transparent
+    \inmodule QtProtobuf
+    \internal
+    \brief Only used to create new, unique types for numeric types.
 */
 
 /*!