Kodunuzu aşağıdaki güncelleyip, entegre ederseniz işinize yarayacaktır.
<input type="text" class="form-control" name="social[0][title]">
<input type="text" class="form-control" name="social[0][icon]">
<input type="text" class="form-control" name="social[0][url]">
<input type="text" class="form-control" name="social[1][title]">
<input type="text" class="form-control" name="social[1][icon]">
<input type="text" class="form-control" name="social[1][url]">