Add more appstream data

Adding some fields for helpful links.

Change-Id: I306eaccd48412b836ae78d5be50d171c4d1d87d8
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

share/metainfo/io.qt.qtdesignstudio.appdata.xml.cmakein

@@ -27,6 +27,11 @@
  <launchable type="desktop-id">io.qt.qtdesignstudio.desktop</launchable>
 
  <url type="homepage">https://www.qt.io/product/ui-design-tools</url>
+ <url type="bugtracker">https://bugreports.qt.io/projects/QDS/summary</url>
+ <url type="help">https://doc.qt.io/qtdesignstudio/</url>
+ <url type="vcs-browser">https://codereview.qt-project.org/q/project:qt-creator/qt-creator</url>
+ <url type="contribute">https://www.qt.io/community/contribute-to-qt</url>
+
  <project_group>Qt</project_group>
  <content_rating type="oars-1.1" />
  <screenshots>

share/metainfo/org.qt-project.qtcreator.appdata.xml.cmakein

@@ -29,6 +29,12 @@
  <launchable type="desktop-id">org.qt-project.qtcreator.desktop</launchable>
 
  <url type="homepage">https://www.qt.io/product/development-tools</url>
+ <url type="bugtracker">https://bugreports.qt.io/projects/QTCREATORBUG/summary</url>
+ <url type="help">https://doc.qt.io/qtcreator</url>
+ <url type="contact">https://lists.qt-project.org/listinfo/qt-creator</url>
+ <url type="vcs-browser">https://codereview.qt-project.org/q/project:qt-creator/qt-creator</url>
+ <url type="contribute">https://www.qt.io/community/contribute-to-qt</url>
+
  <project_group>Qt</project_group>
  <content_rating type="oars-1.1" />
  <screenshots>