xwayland/xwm: get supported props on constructing surface (#13156)

not all clients supports WM_DELETE_WINDOW like glxgears, so get
supported props in constuctor of surface, and if not supported
forcefully kill the client.

src/xwayland/XSurface.hpp

@@ -118,5 +118,7 @@ class CXWaylandSurface {
         CHyprSignalListener commitSurface;
     } m_listeners;
 
+    std::unordered_map<xcb_atom_t, bool> m_supportedProps;
+
     friend class CXWM;
 };