Use this code to Code Injection – Footer

Replace with your desired URL + logo image URL

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.0/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $('<a href="https://carolinerohwer.com" class="custom-logo"><img src="https://cdn.pixabay.com/photo/2023/07/12/17/23/activity-8122959_1280.jpg" width="100px"/></a>').insertAfter('.header-title a');
});
</script>
<style>
a.custom-logo img {
    width: 100px !important;
    height: auto !important;
    max-height: unset !important;
}
</style>

Result: