Solve broken marker image paths in the admin panel #162

Job	Run time
tests_node	24s
Test on Python 3.9 and Django 4.2 on postgres	2m 29s
Test on Python 3.10 and Django 5.0 on postgres	2m 23s
Test on Python 3.10 and Django 4.2 on postgres	2m 1s
Test on Python 3.11 and Django 5.0 on postgres	2m 37s
Test on Python 3.11 and Django 4.2 on postgres	2m 24s
Test on Python 3.10 and Django 5.1 on postgres	1m 49s
Test on Python 3.11 and Django 5.1 on postgres	2m 12s
Test on Python 3.12 and Django 4.2 on postgres	1m 19s
Test on Python 3.12 and Django 5.0 on postgres	3m 30s
Test on Python 3.11 and Django 5.2 on postgres	1m 25s
Test on Python 3.13 and Django 5.1 on postgres	1m 29s
Test on Python 3.12 and Django 5.1 on postgres	1m 28s
Test on Python 3.9 and Django 4.2 on sqlite	1m 56s
Test on Python 3.10 and Django 5.2 on postgres	2m 8s
Test on Python 3.12 and Django 5.2 on postgres	2m 3s
Test on Python 3.13 and Django 5.2 on postgres	2m 5s
	33m 42s

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