Jane_doe As suggested by @Leoth, IPA would be the best option. You can use either a wooden toothpick or a soft-bristle toothbrush for this.
To clean the edges, take a wooden toothpick and wrap a microfiber cloth around the tip. Dip it in Isopropyl Alcohol (IPA) or spray some IPA onto the cloth, then carefully clean the edges. Alternatively, you can dip a soft bristle toothbrush in IPA and gently scrub the edges, then wipe them thoroughly with a dry microfiber cloth.
I personally do these stuffs a lot on my gadgets. May be it’s an OCD but I like to keep them 99.99% clean all the time.