bug(mindmap): fix image removal #62

Job	Run time
framework-current	38s
framework-previous	31s
cli-current	33s
cli-previous	26s
documentation-e2e-1	1m 33s
documentation-e2e-2	1m 36s
documentation-e2e-3	1m 44s
documentation-e2e-4	1m 27s
documentation-e2e-5	1m 31s
documentation-website	37s
framework-integration-current	1m 15s
framework-integration-previous	1m 1s
end	2s
	12m 54s

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