build: create copy of kernel binary with debug symbols

tools/kernel-debug/debug_session.sh

@@ -10,7 +10,8 @@ if command -v gdb &> /dev/null; then
 		new-session -d -s hz-debug "sleep 0.3; gdb -tui -x $gdb_cfg" \; \
 		split-window -h -l 80 \; \
 		split-window -v -l 25 "$@"\; \
-		select-pane -t 0
+		select-pane -t 0 \; \
+		resize-pane -R 20
 elif command -v lldb &> /dev/null; then
 	printf "    \033[93;1mLLDB\033[0m   boot/socks_kernel\n"
 	tmux \