Disabled after submit

src/routes/ContactForm/ContactForm.svelte

@@ -37,6 +37,7 @@ $: errorSlugs = ((): {
 $: invalid = Object.values(errorSlugs).some(slug => slug !== null)
 
 const handleSubmit = () => {
+  if (submitted) return
   attemptedSubmit = true
 
   if (invalid) return
@@ -73,6 +74,7 @@ const handleSubmit = () => {
         autocomplete="off"
         bind:value={form.message}
         class="md:h-full"
+        disabled={submitted}
       ></textarea>
       {#if attemptedSubmit && errorSlugs.message}
         <span class="text-sm text-red-500 absolute top-full">{$t(errorSlugs.message)}</span>
@@ -87,6 +89,7 @@ const handleSubmit = () => {
           type="text"
           autocomplete="off"
           bind:value={form.name}
+          disabled={submitted}
         />
         {#if attemptedSubmit && errorSlugs.name}
           <span class="text-sm text-red-500 absolute top-full">{$t(errorSlugs.name)}</span>
@@ -99,6 +102,7 @@ const handleSubmit = () => {
           type="email"
           autocomplete="off"
           bind:value={form.email}
+          disabled={submitted}
         />
         {#if attemptedSubmit && errorSlugs.email}
           <span class="text-sm text-red-500 absolute top-full">{$t(errorSlugs.email)}</span>