fix: URLプレビューの動作改善＋動作設定を可能にする (#13579)

* wip

* support new version

* URLプレビュー無効化時、フロント側も非表示にしてリクエストをしないようにする

* fix lint

* fix lint

* tweak preview request error handles

* fix: CHANGELOG.md

* fix

* fix

---------

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

packages/frontend/src/pages/admin/security.vue

@@ -118,19 +118,6 @@ SPDX-License-Identifier: AGPL-3.0-only
 						</MkSwitch>
 					</div>
 				</MkFolder>
-
-				<MkFolder>
-					<template #label>Summaly Proxy</template>
-
-					<div class="_gaps_m">
-						<MkInput v-model="summalyProxy">
-							<template #prefix><i class="ti ti-link"></i></template>
-							<template #label>Summaly Proxy URL</template>
-						</MkInput>
-
-						<MkButton primary @click="save"><i class="ti ti-device-floppy"></i> {{ i18n.ts.save }}</MkButton>
-					</div>
-				</MkFolder>
 			</div>
 		</FormSuspense>
 	</MkSpacer>
@@ -155,7 +142,6 @@ import { fetchInstance } from '@/instance.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-const summalyProxy = ref<string>('');
 const enableHcaptcha = ref<boolean>(false);
 const enableMcaptcha = ref<boolean>(false);
 const enableRecaptcha = ref<boolean>(false);
@@ -175,7 +161,6 @@ const bannedEmailDomains = ref<string>('');
 
 async function init() {
 	const meta = await misskeyApi('admin/meta');
-	summalyProxy.value = meta.summalyProxy;
 	enableHcaptcha.value = meta.enableHcaptcha;
 	enableMcaptcha.value = meta.enableMcaptcha;
 	enableRecaptcha.value = meta.enableRecaptcha;
@@ -201,7 +186,6 @@ async function init() {
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		summalyProxy: summalyProxy.value,
 		sensitiveMediaDetection: sensitiveMediaDetection.value,
 		sensitiveMediaDetectionSensitivity:
 			sensitiveMediaDetectionSensitivity.value === 0 ? 'veryLow' :