enhance(frontend): サインイン画面の改善 (#14658)

* wip

* Update MkSignin.vue

* Update MkSignin.vue

* wip

* Update CHANGELOG.md

* enhance(frontend): サインイン画面の改善

* Update Changelog

* 14655の変更取り込み

* spdx

* fix

* fix

* fix

* 🎨

* 🎨

* 🎨

* 🎨

* Captchaがリセットされない問題を修正

* 次の処理をsignin apiから読み取るように

* Add Comments

* fix

* fix test

* attempt to fix test

* fix test

* fix test

* fix test

* fix

* fix test

* fix: 一部のエラーがちゃんと出るように

* Update Changelog

* 🎨

* 🎨

* remove border

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/frontend/src/components/MkSignin.totp.vue

@@ -0,0 +1,74 @@
+<!--
+SPDX-FileCopyrightText: syuilo and misskey-project
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<template>
+<div :class="$style.wrapper">
+	<div class="_gaps" :class="$style.root">
+		<div class="_gaps_s">
+			<div :class="$style.totpIcon">
+				<i class="ti ti-key"></i>
+			</div>
+			<div :class="$style.totpDescription">{{ i18n.ts['2fa'] }}</div>
+		</div>
+
+		<!-- totp入力 -->
+		<form class="_gaps_s" @submit.prevent="emit('totpSubmitted', token)">
+			<MkInput v-model="token" type="text" :pattern="isBackupCode ? '^[A-Z0-9]{32}$' :'^[0-9]{6}$'" autocomplete="one-time-code" required autofocus :spellcheck="false" :inputmode="isBackupCode ? undefined : 'numeric'">
+				<template #label>{{ i18n.ts.token }} ({{ i18n.ts['2fa'] }})</template>
+				<template #prefix><i v-if="isBackupCode" class="ti ti-key"></i><i v-else class="ti ti-123"></i></template>
+				<template #caption><button class="_textButton" type="button" @click="isBackupCode = !isBackupCode">{{ isBackupCode ? i18n.ts.useTotp : i18n.ts.useBackupCode }}</button></template>
+			</MkInput>
+
+			<MkButton type="submit" large primary rounded style="margin: 0 auto;">{{ i18n.ts.continue }} <i class="ti ti-arrow-right"></i></MkButton>
+		</form>
+	</div>
+</div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue';
+
+import { i18n } from '@/i18n.js';
+
+import MkButton from '@/components/MkButton.vue';
+import MkInput from '@/components/MkInput.vue';
+
+const emit = defineEmits<{
+	(ev: 'totpSubmitted', token: string): void;
+}>();
+
+const token = ref('');
+const isBackupCode = ref(false);
+</script>
+
+<style lang="scss" module>
+.wrapper {
+	display: flex;
+	align-items: center;
+	width: 100%;
+	min-height: 336px;
+
+	> .root {
+		width: 100%;
+	}
+}
+
+.totpIcon {
+	margin: 0 auto;
+	background-color: var(--accentedBg);
+	color: var(--accent);
+	text-align: center;
+	height: 64px;
+	width: 64px;
+	font-size: 24px;
+	line-height: 64px;
+	border-radius: 50%;
+}
+
+.totpDescription {
+	text-align: center;
+	font-size: 1.1em;
+}
+</style>