[Favicon] Plast favicon in Safari is displayed very rarely

[NataliyaDominyuk]

Environment: Mac OS Monterey 12.6, Safari version 15.6.1 (17613.3.9.1.16)
Reproducible: often (9 times out of 10)
Build found: 9e7bc1b
Priority: low
Severity: low

Steps to reproduce

1. Sign in as as any user (https://eplast.westeurope.cloudapp.azure.com/signin) using Safari browser
2. Check the favicon

Actual result
Plast favicon in Safari is displayed very rarely, once in 10-15 cases.

Expected result
Plast favicon in Safari should be displayed all the time