fix: forbid closing the last page #334

Job	Run time
Tests on ubuntu-latest with node 24	45s
Tests on windows-latest with node 24	1m 25s
Tests on windows-latest with node 22	2m 29s
Tests on macos-latest with node 22	1m 11s
Tests on macos-latest with node 24	1m 6s
Tests on ubuntu-latest with node 22	46s
[Required] Tests passed	3s
	7m 45s

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