Doc: Fix broken links

- Add a dependency to qtqmltest (Qt Quick Test)
- Fix an internal link
- Fix capitalization in links to Qt docs, which now
  seems to matter
- Add the "Qt Qml" link as an external resource, so it works
  regardless of the Qt version used

Change-Id: I0550973237b0df7b328ca202a4188d970af3417d
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

doc/qtcreator/config/qtcreator-project.qdocconf

@@ -27,6 +27,7 @@ depends +=    qtwidgets \
               qtcmake \
               qtcore \
               qtqml \
+              qtqmltest \
               qtquick \
               qtquickcontrols \
               qmake \

doc/qtcreator/src/external-resources/external-resources.qdoc

@@ -1,6 +1,10 @@
 // Copyright (C) 2022 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
 
+/*!
+    \externalpage https://doc.qt.io/qt/qtqml-index.html
+    \title Qt Qml
+*/
 /*!
     \externalpage https://doc.qt.io/QtForMCUs/index.html
     \title \QMCU

doc/qtcreator/src/howto/creator-keyboard-shortcuts.qdoc

@@ -374,7 +374,7 @@
                statements, and macros, as well as CMake functions, macros,
                targets, and packages. Also, opens URLs in the default browser
                \if defined(qtcreator)
-               and Qt resource files (.qrc) in the \l{Resource Files}
+               and Qt resource files (.qrc) in the \l{Create resource files}
                {resource editor}
                \endif
             \li  F2

doc/qtcreator/src/overview/creator-tech-support.qdoc

@@ -39,7 +39,7 @@
         \if defined(qtcreator)
         \row
             \li View examples of what you can do with Qt
-            \li \l{Qt Examples and Tutorials}
+            \li \l{Qt Examples And Tutorials}
 
         \row
             \li Develop Qt applications for desktop and \l{glossary-device}{devices}

doc/qtcreator/src/qtquick/creator-only/qtquick-designer-plugin.qdoc

@@ -39,7 +39,7 @@
 
     \image qtquick-designer.webp {Qt Quick Designer}
 
-    For more information about \l{Qt QML}, \l{Qt Quick}, and \l{All QML Types}
+    For more information about \l{Qt Qml}, \l{Qt Quick}, and \l{All QML Types}
     {QML types}, see the Qt reference documentation available online and
     in the \uicontrol Help mode.