Remove unused IconButton component

src/components/IconButton.tsx

@@ -1,23 +0,0 @@
-type IconButtonProps = {
-  label: string;
-  iconClass: string;
-  callback: React.MouseEventHandler<HTMLButtonElement>;
-}
-
-function IconButton(props: IconButtonProps) {
-  const iconClasses = () => {
-    return `bi ${props.iconClass} me-2`;
-  };
-
-  return (
-    <button 
-      className="btn text-secondary"
-      onClick={props.callback}
-    >
-      <i className={iconClasses()} />
-      {props.label}
-    </button>
-  )
-}
-
-export default IconButton