feat(client): 自動でもっと見るオプション (#6403)

* wip

* ugokanai

* wip

* implement setting subscribing

* fix lint

* ✌️

* Update notifications.vue

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

src/client/components/notifications.vue

@@ -5,7 +5,7 @@
 		<x-notification v-else :notification="notification" :with-time="true" :full="true" class="_panel notification" :key="notification.id"/>
 	</x-list>
 
-	<button class="_panel _button" v-if="more" @click="fetchMore" :disabled="moreFetching">
+	<button class="_panel _button" ref="loadMore" v-show="more" :disabled="moreFetching" :style="{ cursor: moreFetching ? 'wait' : 'pointer' }">
 		<template v-if="!moreFetching">{{ $t('loadMore') }}</template>
 		<template v-if="moreFetching"><mk-loading inline/></template>
 	</button>