delete unused component

packages/frontend/src/components/MkCheckbox.vue

-<template>
-<div
-	class="ziffeoms"
-	:class="{ disabled, checked }"
->
-	<input
-		ref="input"
-		type="checkbox"
-		:disabled="disabled"
-		@keydown.enter="toggle"
-	>
-	<span ref="button" v-adaptive-border v-tooltip="checked ? i18n.ts.itsOn : i18n.ts.itsOff" class="button" @click.prevent="toggle">
-		<i class="check ti ti-check"></i>
-	</span>
-	<span class="label">
-		<!-- TODO: 無名slotの方は廃止 -->
-		<span @click="toggle"><slot name="label"></slot><slot></slot></span>
-		<p class="caption"><slot name="caption"></slot></p>
-	</span>
-</div>
-</template>
-
-<script lang="ts" setup>
-import { toRefs, Ref } from 'vue';
-import * as os from '@/os';
-import MkRippleEffect from '@/components/MkRippleEffect.vue';
-import { i18n } from '@/i18n';
-
-const props = defineProps<{
-	modelValue: boolean | Ref<boolean>;
-	disabled?: boolean;
-}>();
-
-const emit = defineEmits<{
-	(ev: 'update:modelValue', v: boolean): void;
-}>();
-
-let button = $shallowRef<HTMLElement>();
-const checked = toRefs(props).modelValue;
-const toggle = () => {
-	if (props.disabled) return;
-	emit('update:modelValue', !checked.value);
-
-	if (!checked.value) {
-		const rect = button.getBoundingClientRect();
-		const x = rect.left + (button.offsetWidth / 2);
-		const y = rect.top + (button.offsetHeight / 2);
-		os.popup(MkRippleEffect, { x, y, particle: false }, {}, 'end');
-	}
-};
-</script>
-
-<style lang="scss" scoped>
-.ziffeoms {
-	position: relative;
-	display: flex;
-	transition: all 0.2s ease;
-
-	> * {
-		user-select: none;
-	}
-
-	> input {
-		position: absolute;
-		width: 0;
-		height: 0;
-		opacity: 0;
-		margin: 0;
-	}
-
-	> .button {
-		position: relative;
-		display: inline-flex;
-		flex-shrink: 0;
-		margin: 0;
-		box-sizing: border-box;
-		width: 23px;
-		height: 23px;
-		outline: none;
-		background: var(--panel);
-		border: solid 1px var(--panel);
-		border-radius: 4px;
-		cursor: pointer;
-		transition: inherit;
-
-		> .check {
-			margin: auto;
-			opacity: 0;
-			color: var(--fgOnAccent);
-			font-size: 13px;
-			transform: scale(0.5);
-			transition: all 0.2s ease;
-		}
-	}
-
-	&:hover {
-		> .button {
-			border-color: var(--inputBorderHover) !important;
-		}
-	}
-
-	> .label {
-		margin-left: 12px;
-		margin-top: 2px;
-		display: block;
-		transition: inherit;
-		color: var(--fg);
-
-		> span {
-			display: block;
-			line-height: 20px;
-			cursor: pointer;
-			transition: inherit;
-		}
-
-		> .caption {
-			margin: 8px 0 0 0;
-			color: var(--fgTransparentWeak);
-			font-size: 0.85em;
-
-			&:empty {
-				display: none;
-			}
-		}
-	}
-
-	&.disabled {
-		opacity: 0.6;
-		cursor: not-allowed;
-	}
-
-	&.checked {
-		> .button {
-			background-color: var(--accent) !important;
-			border-color: var(--accent) !important;
-
-			> .check {
-				opacity: 1;
-				transform: scale(1);
-			}
-		}
-	}
-}
-</style>