React Todo App Bug Fix

I have a small Todo app built with React hooks that keeps everything in the browser via localStorage—no database or external state library, just useState throughout. After I added simple filter tabs (All / Active / Completed) by following a YouTube tutorial, three issues appeared: 1... (Budget: $30 - $250 USD, Jobs: CSS, Debugging, Frontend Development, HTML, JavaScript, Software Development, Software Testing, Version Control Git, Web Application, Web Development)