I recently logged into the web app for the first time in over a year. Usually use the desktop version/mobile app. I noticed that certain (seemingly random) notes are marked with smiley/winky faces in the upper-right corner. In the list at the side of the page, not the open note. Could someone please explain why this is? I haven't typed anything in the headers that would be converted into emojis. I'm the only one with access to this account unless my security has been breached. Thank you.