fix: use form to sign in

Co-authored-by: Lindsay Wardell <three060@gmail.com>

components/user/UserSignIn.vue

@@ -18,17 +18,17 @@ async function handleInput() {
 </script>
 
 <template>
-  <div text-center justify-center items-center flex="~ col gap2">
+  <form text-center justify-center items-center flex="~ col gap2" @submit.prevent="oauth">
     <div text-3xl mb2>
       Sign in
     </div>
     <div>Mastodon Server Name</div>
     <div flex bg-gray:10 px2 py1 mxa rounded border="~ border" text-xl items-center>
       <span op35 mr1 text-sm>https://</span>
-      <input v-model="server" :placeholder="DEFAULT_SERVER" outline-none bg-transparent @input="handleInput" @keyup.enter="oauth()">
+      <input v-model="server" :placeholder="DEFAULT_SERVER" outline-none bg-transparent @input="handleInput">
     </div>
-    <button btn-solid mt2 @click="oauth()">
+    <button btn-solid mt2>
       Sign in
     </button>
-  </div>
+  </form>
 </template>