GNOME Network Displays 0.99.0

• wfd: Fix keep-alive and RTCP port handling for Roku/Hisense sinks (@christophermarek)
  
• sink-row: Add adw_preferences_row_set_use_markup (@lorbus)
  
• fix a couple of memory leaks and a use-after-free crash
  

Git-EVTag-v0-SHA512: 57630370daaab5870e58cccc6b59ee3c9cd75d5e58d69d27cc5db8c6290aa58136913a0e4bd4788f79e2671c3140b0d602ae4b2fe749f232b4912b658e343228