Solve broken marker image paths in the admin panel (#392) #163

Job	Run time
tests_node	16s
Test on Python 3.9 and Django 4.2 on postgres	1m 6s
Test on Python 3.12 and Django 5.0 on postgres	3m 7s
Test on Python 3.11 and Django 4.2 on postgres	1m 16s
Test on Python 3.11 and Django 5.0 on postgres	2m 32s
Test on Python 3.10 and Django 4.2 on postgres	1m 23s
Test on Python 3.10 and Django 5.1 on postgres	1m 23s
Test on Python 3.12 and Django 4.2 on postgres	2m 15s
Test on Python 3.10 and Django 5.0 on postgres	1m 36s
Test on Python 3.11 and Django 5.1 on postgres	1m 50s
Test on Python 3.12 and Django 5.1 on postgres	2m 16s
Test on Python 3.10 and Django 5.2 on postgres	1m 53s
Test on Python 3.12 and Django 5.2 on postgres	2m 5s
Test on Python 3.11 and Django 5.2 on postgres	1m 8s
Test on Python 3.9 and Django 4.2 on sqlite	1m 49s
Test on Python 3.13 and Django 5.1 on postgres	1m 36s
Test on Python 3.13 and Django 5.2 on postgres	2m 1s
	29m 32s

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