feat(ui): connect to remote ui (only debug messages for now)

co-authored-by: hlpr98 <hlpr98@gmail.com>

src/nvim/api/private/dispatch.c

@@ -30,6 +30,7 @@
 #include "nvim/api/vimscript.h"
 #include "nvim/api/win_config.h"
 #include "nvim/api/window.h"
+#include "nvim/ui_client.h"
 
 static Map(String, MsgpackRpcRequestHandler) methods = MAP_INIT;
 
@@ -38,6 +39,13 @@ static void msgpack_rpc_add_method_handler(String method, MsgpackRpcRequestHandl
   map_put(String, MsgpackRpcRequestHandler)(&methods, method, handler);
 }
 
+void msgpack_rpc_add_redraw(void)
+{
+  msgpack_rpc_add_method_handler(STATIC_CSTR_AS_STRING("redraw"),
+                                 (MsgpackRpcRequestHandler) { .fn = ui_client_handle_redraw,
+                                                              .fast = true });
+}
+
 /// @param name API method name
 /// @param name_len name size (includes terminating NUL)
 MsgpackRpcRequestHandler msgpack_rpc_get_handler_for(const char *name, size_t name_len,