feat: connect RemnaWave baseTranslations and fix SVG icons

- Wire baseTranslations from RemnaWave config to connection page UI
  (copyLink, openApp, installApp, addSubscription, connectAndUse,
  tutorial, close) with locale fallback: current lang → en → ru → first
- Add tutorial button when baseSettings.isShowTutorialButton is enabled
- Fix SVG icon rendering on admin apps settings page with proper scaling
- Add colored circle backgrounds for block and app icons in admin panel
- Add tutorial translation key to all locale files

src/locales/en.json

@@ -346,7 +346,8 @@
       "changeApp": "Change app",
       "selectPlatform": "Select platform",
       "app": "app",
-      "apps": "apps"
+      "apps": "apps",
+      "tutorial": "Tutorial"
     },
     "myDevices": "My Devices",
     "noDevices": "No connected devices",

src/locales/fa.json

@@ -298,7 +298,8 @@
       "changeApp": "تغییر برنامه",
       "selectPlatform": "انتخاب پلتفرم",
       "app": "برنامه",
-      "apps": "برنامه"
+      "apps": "برنامه",
+      "tutorial": "آموزش"
     },
     "additionalOptions": {
       "title": "گزینه‌های اضافی",

src/locales/ru.json

@@ -368,7 +368,8 @@
       "changeApp": "Сменить приложение",
       "selectPlatform": "Выберите платформу",
       "app": "приложение",
-      "apps": "приложений"
+      "apps": "приложений",
+      "tutorial": "Инструкция"
     },
     "myDevices": "Мои устройства",
     "noDevices": "Нет подключенных устройств",

src/locales/zh.json

@@ -298,7 +298,8 @@
       "changeApp": "更换应用",
       "selectPlatform": "选择平台",
       "app": "个应用",
-      "apps": "个应用"
+      "apps": "个应用",
+      "tutorial": "教程"
     },
     "additionalOptions": {
       "title": "附加选项",