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I would greatly appreciate any feedback that you may have!

I learned a lot about themes from this challenge. It took me a long time to get everything working, but now it functions as intended.

• I wrote a simple function that shortens links visually (https://www.frontendmentor.io/ -> frontendmentor.io). I noticed that if the link was too long, it would push the whole content, so I decided to shorten them, and I also set a max-width on each link. I'm not entirely certain about the max-width property, but it seems to work
• I used the fecha library to format the date
• I added a loading spinner
• I made a custom favicon :)

How does my theme switcher and JS logic look overall?