feat(web): вход с 2FA сразу, панель пользователя, модальные настройки, markdown

По правкам пользователя:

- вход: поле «Код 2FA или резервный код» видно сразу, принимает 14-символьные
  резервные коды (раньше влезало 6 цифр), пустое значение не ломает вход;
- нижняя панель: одна подложка, слева аватар и имя с мини-профилем и выбором
  статуса, справа микрофон, камера, наушники (переключатели, стрелка с выбором
  устройства и громкости, переход в «Аудио-видео») и шестерёнка;
- кнопка «Покинуть сервер» из сайдбара убрана (выход — в «Опасной зоне»);
- настройки открываются модальным окном со списком пунктов; «Профиль» имеет
  вкладки «Основной» и «Сервер» (список серверов, ник и «Применить ко всем
  серверам»), аватар загружается и удаляется, есть часовой пояс (МСК по
  умолчанию);
- markdown: добавлены ==выделение==, __жирный__, ***оба***, ||спойлер||, #канал;
- двойной клик по сообщению ставит ответ (не срабатывает на ссылках, кнопках и
  при выделенном тексте);
- 219 тестов Vitest (было 176), check/lint/test/build зелёные.

web/src/i18n/locales/en.json

@@ -100,15 +100,16 @@
       "email": "Email",
       "emailPlaceholder": "you@example.com",
       "password": "Password",
-      "totp": "2FA code",
-      "totpHint": "Six digits from your authenticator app.",
+      "totp": "2FA or recovery code",
+      "totpHint": "If 2FA is enabled; a recovery code like xxxx-xxxx-xxxx also works.",
       "submit": "Sign in",
       "submitting": "Signing in…",
       "noAccount": "No account yet?",
       "registerLink": "Create one",
       "forgot": "Forgot your password? Ask the instance admin.",
       "instanceStatus": "Instance status",
-      "registrationDisabled": "Registration on this instance is disabled by the admin."
+      "registrationDisabled": "Registration on this instance is disabled by the admin.",
+      "totpRequired": "Enter the 2FA or recovery code — sign-in needs it."
     },
     "register": {
       "title": "Create account",
@@ -219,7 +220,8 @@
     },
     "selectUnread": "Open channel {{name}}, {{count}} unread",
     "selectMentions": "Open channel {{name}}, {{count}} mentions",
-    "slowmode": "slowmode {{seconds}}s"
+    "slowmode": "slowmode {{seconds}}s",
+    "leaveHint": "You can leave the server in server settings → “Danger zone”."
   },
   "chat": {
     "log": "Message log of {{name}}",
@@ -309,7 +311,11 @@
       "empty": "Nothing found."
     },
     "unread": "Unread messages: {{count}}",
-    "mentions": "Mentions: {{count}}"
+    "mentions": "Mentions: {{count}}",
+    "spoiler": {
+      "show": "Reveal spoiler",
+      "hide": "Hide spoiler"
+    }
   },
   "user": {
     "panelLabel": "User panel",
@@ -319,7 +325,8 @@
       "open": "Open the user menu",
       "account": "Account settings",
       "guilds": "Server settings",
-      "status": "Status"
+      "status": "Status",
+      "noBio": "No bio yet."
     },
     "logout": "Sign out",
     "loggingOut": "Signing out…",
@@ -331,6 +338,29 @@
       "dnd": "Do not disturb",
       "invisible": "Invisible",
       "offline": "Offline"
+    },
+    "voice": {
+      "input": "Input device",
+      "output": "Output device",
+      "camera": "Camera",
+      "micVolume": "Microphone volume",
+      "outputVolume": "Sound volume",
+      "micOn": "Unmute microphone",
+      "micOff": "Mute microphone",
+      "cameraOn": "Turn camera on",
+      "cameraOff": "Turn camera off",
+      "soundOn": "Undeafen",
+      "soundOff": "Deafen",
+      "micSettings": "Microphone settings",
+      "cameraSettings": "Camera settings",
+      "soundSettings": "Sound settings",
+      "audioSettings": "Audio & video settings"
+    },
+    "devices": {
+      "default": "Default device",
+      "unavailable": "Devices are unavailable",
+      "empty": "No devices found",
+      "unnamed": "Device {{index}}"
     }
   },
   "gateway": {
@@ -357,6 +387,9 @@
       "profile": "Profile",
       "security": "Security",
       "appearance": "Appearance",
+      "notifications": "Notifications",
+      "voice": "Audio & video",
+      "language": "Language & region",
       "instance": "Instance"
     },
     "profile": {
@@ -375,7 +408,31 @@
       "username": "Username",
       "userId": "User ID",
       "badges": "Badges",
-      "noBadges": "none"
+      "noBadges": "none",
+      "tabsLabel": "Profile tabs",
+      "tabs": {
+        "main": "General",
+        "server": "Server"
+      },
+      "timezone": "Time zone",
+      "timezoneHint": "Used to show message times.",
+      "timezoneDefault": "default (MSK)",
+      "avatar": {
+        "title": "Avatar",
+        "hint": "Everyone can see this picture.",
+        "preview": "Avatar preview",
+        "choose": "Choose an avatar file",
+        "upload": "Upload avatar",
+        "remove": "Remove avatar",
+        "limit": "Up to {{limit}}; PNG, JPEG, WebP or GIF.",
+        "tooLarge": "The file is larger than {{limit}} — pick a smaller image."
+      },
+      "decorations": {
+        "title": "Decorations",
+        "hint": "Profile badges and frames.",
+        "empty": "No decorations yet.",
+        "stub": "Badges, frames and profile effects are coming later."
+      }
     },
     "security": {
       "title": "Security",
@@ -467,7 +524,13 @@
         "placeholder": "Leave empty to reset the nickname",
         "current": "Current nickname:",
         "none": "not set",
-        "saved": "Nickname saved."
+        "saved": "Nickname saved.",
+        "applyAll": "Apply to all servers",
+        "applyAllHint": "One nickname for every server you are in.",
+        "applyAllPending": "Applying…",
+        "applyAllProgress": "Servers updated: {{done}} of {{total}}",
+        "applyAllDone": "Nickname applied on all servers ({{total}}).",
+        "applyAllFailed": "Failed to update servers: {{failed}}."
       },
       "members": {
         "title": "Members",
@@ -497,7 +560,33 @@
         "deleteConfirmTitle": "Delete the server?",
         "deleteConfirmBody": "“{{name}}” will be deleted permanently.",
         "deleteConfirm": "Delete"
-      }
+      },
+      "selectLabel": "Choose a server"
+    },
+    "navLabel": "Settings sections",
+    "notifications": {
+      "title": "Notifications",
+      "description": "Sounds, mentions and web push.",
+      "stub": "Notification settings are coming later."
+    },
+    "voice": {
+      "title": "Audio & video",
+      "description": "Input and output devices and volume.",
+      "input": "Microphone",
+      "camera": "Camera",
+      "output": "Sound",
+      "micVolume": "Microphone volume",
+      "outputVolume": "Sound volume",
+      "stub": "Voice channels arrive in the next phase — for now these settings are only stored."
+    },
+    "language": {
+      "title": "Language & region",
+      "description": "Time zone and interface language.",
+      "timezone": "Time zone",
+      "timezoneHint": "Used for message times.",
+      "locale": "Interface language",
+      "localeHint": "Applies immediately.",
+      "saved": "Region settings saved."
     }
   }
 }