Put occupants update into own function

src/ui/ui.h

@@ -344,6 +344,7 @@ void rosterwin_roster(void);
 
 // occupants window
 void occupantswin_occupants(const char *const room);
+void occupantswin_occupants_all(void);
 
 // window interface
 ProfWin* win_create_console(void);