Navigation style broken

Hi, I got creative and deleted the square icons between the heading and paragraph in the Theme Editor. After that it worked fine. But now the navigation symbols have gotten really big. I already tried to put back the original scripts and tested if the problem would disappear (I have the original install as back-up) but I can't find the solution. The url of the staging is: procreate.design/site/ Maybe you can tell me what is broken and how I should of done it?