gnu: liferea: Add missing inputs.

These new inputs are referenced by the package but was missing in
the package definition. Some of these inputs might have been used
by the package indirectly via propagation from other inputs.

* gnu/packages/syndication.scm (liferea) [inputs]: Add glib, libsoup,
pango and sqlite.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/packages/syndication.scm

@@ -225,7 +225,8 @@ file system, and many more features.")
        ("pkg-config" ,pkg-config)
        ("which" ,which)))
     (inputs
-     `(("glib-networking" ,glib-networking)
+     `(("glib" ,glib)
+       ("glib-networking" ,glib-networking)
        ("gnome-keyring" ,gnome-keyring)
        ("gsettings-desktop-schemas" ,gsettings-desktop-schemas)
        ("gstreamer" ,gstreamer)
@@ -233,11 +234,14 @@ file system, and many more features.")
        ("libnotify" ,libnotify)
        ("libpeas" ,libpeas)
        ("libsecret" ,libsecret)
+       ("libsoup" ,libsoup)
        ("libxml2" ,libxml2)
        ("libxslt" ,libxslt)
+       ("pango" ,pango)
        ("python" ,python)
        ("python-pycairo" ,python-pycairo)
        ("python-pygobject" ,python-pygobject)
+       ("sqlite" ,sqlite)
        ("webkitgtk" ,webkitgtk)))
     (home-page "https://lzone.de/liferea/")
     (synopsis "News reader for GTK/GNOME")