Linux GUI support 1.0.52

• weston : f784b4ae
• FreeRDP : 74f59827
• pulseaudio: 6f045ff0

Changes:

WSLg:

• WSLg: update pulseaudio to 16.1
• WSLg: update FreeRDP to 2.10.1

Weston:

• rdp shell/rdp backend: drop window shadow when window is snapped
• rdp shell: support restore from maximized by grabbing title bar
• rdp backend: do not set window margin unless changed in window order PDU