I tried your proposals from github. They seem to work fine. I don't have experience with the results in seekmachines. But I propose to pull the changes into the code! pull request=yes. But I will not do this->someone else!
on JEM 2.3.3 stable in latest Joomla (3.10.2) Protostar php7.4.15
Personally I use t4_B5 template with t4_system plugin framework with bootstrap 5 and fontawesome)
(I prefer free "Signal" or paid "Threema" instead of "Whatsapp".)
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