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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
While there is a plugin to make buttons, but I couldn't get it to work how I wanted. They have a replace line function, but it's not relative, and I'm unsure if the section you want to modify moves around from writing above it. This means that it's quite hard for me to give you a good solution for clickable items so instead I've got a different solution. It also might scale better for you if you ever consider using Dataview tables to show your journal entries.