[#29] open images in own windows (modal) for detail view #54

Job	Run time
Check code formatting (test)	16s
Check code formatting (include)	9s
Check code formatting (src)	12s
Build (windows-latest - Qt 6.7.*)	48s
Build (windows-latest - Qt 5.15.2)	1m 1s
Build (ubuntu-latest - Qt 6.7.*)	56s
Build (ubuntu-22.04 - Qt 5.15.2)	2m 7s
	5m 29s

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