feat: suspend instance improvements (#13861)

* feat(backend): dead instance detection

* feat(backend): suspend type detection

* feat(frontend): show suspend reason on frontend

* feat(backend): resume federation automatically if the server is automatically suspended

* docs(changelog): 配信停止まわりの改善

* lint: fix lint errors

* Update packages/frontend/src/pages/instance-info.vue

* lint: fix lint error

* chore: suspendedState => suspensionState

---------

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

locales/ja-JP.yml

@@ -1240,6 +1240,16 @@ noDescription: "説明文はありません"
 alwaysConfirmFollow: "フォローの際常に確認する"
 inquiry: "お問い合わせ"
 
+_delivery:
+  status: "配信状態"
+  stop: "配信停止"
+  resume: "配信再開"
+  _type:
+    none: "配信中"
+    manuallySuspended: "手動停止中"
+    goneSuspended: "サーバー削除のため停止中"
+    autoSuspendedForNotResponding: "サーバー応答なしのため停止中"
+
 _bubbleGame:
   howToPlay: "遊び方"
   hold: "ホールド"