Handle sms: URLs too

Handling those URLs works perfectly fine already, for transferring the
phone number and the body, we just need to register for it.

urlhandler/CMakeLists.txt

@@ -10,4 +10,4 @@ target_link_libraries(kdeconnect-handler
 )
 
 install(TARGETS kdeconnect-handler ${INSTALL_TARGETS_DEFAULT_ARGS})
-install(PROGRAMS org.kde.kdeconnect.telhandler.desktop DESTINATION ${XDG_APPS_INSTALL_DIR} )
+install(PROGRAMS org.kde.kdeconnect.telhandler.desktop org.kde.kdeconnect.smshandler.desktop DESTINATION ${XDG_APPS_INSTALL_DIR} )

urlhandler/org.kde.kdeconnect.smshandler.desktop

+[Desktop Entry]
+Name=KDE Connect SMS URL Handler
+Exec=kdeconnect-handler %U
+Icon=kdeconnect
+Type=Application
+NoDisplay=true
+
+MimeType=x-scheme-handler/sms