fix all type errors

components/Input.tsx

@@ -3,15 +3,15 @@ import React from 'react'
 export default function Input({
   text,
   name,
-  value,
+  value = '',
   placeholder,
   onchange,
 }: {
   text: string
   name: string
-  value: string
-  placeholder: string
-  onchange: () => void
+  value?: string
+  placeholder?: string
+  onchange: (name: string, event: React.ChangeEvent<HTMLInputElement>) => void
 }) {
   return (
     <label>