Solve broken marker image paths in the admin panel #158

Job	Run time
tests_node	17s
Test on Python 3.10 and Django 4.2 on postgres	1m 19s
Test on Python 3.10 and Django 5.0 on postgres	1m 6s
Test on Python 3.12 and Django 4.2 on postgres	1m 19s
Test on Python 3.9 and Django 4.2 on postgres	1m 4s
Test on Python 3.11 and Django 4.2 on postgres	1m 16s
Test on Python 3.12 and Django 5.0 on postgres	1m 19s
Test on Python 3.11 and Django 5.0 on postgres	1m 9s
Test on Python 3.13 and Django 5.1 on postgres	1m 5s
Test on Python 3.11 and Django 5.2 on postgres	1m 16s
Test on Python 3.12 and Django 5.1 on postgres	1m 19s
Test on Python 3.10 and Django 5.1 on postgres	1m 10s
Test on Python 3.10 and Django 5.2 on postgres	1m 11s
Test on Python 3.12 and Django 5.2 on postgres	1m 12s
Test on Python 3.13 and Django 5.2 on postgres	1m 19s
Test on Python 3.9 and Django 4.2 on sqlite	1m 10s
Test on Python 3.11 and Django 5.1 on postgres	1m 19s
	19m 50s

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