Add category-specific documentation view and management

- Introduce routes and controller actions for displaying and managing documentation by category.
- Adjust views to incorporate category-specific information and actions.
- Update services to handle category retrieval and validation.
- Add localized strings for new functionality in English and Russian.

app/application/lang/en.json

@@ -38,6 +38,9 @@
     "Connection Timed Out": "Connection Timed Out",
     "Continue": "Continue",
     "Create": "Create",
+    "Create documentation": "Create documentation",
+    "Create category": "Create category",
+    "Create version documentation": "Create a version of the documentation",
     "Create :name": "Create :name",
     "Created": "Created",
     "Delete": "Delete",

app/application/lang/en/admin-sections.php

@@ -17,4 +17,6 @@ return [
     'Documentation' => 'Documentation',
     'Categories' => 'Categories',
     'Setting up automatic translation' => 'Setting up automatic translation',
+    'Documentation not found' => 'Documentation not found',
+    'No categories found' => 'No categories found',
 ];

app/application/lang/ru.json

@@ -38,6 +38,9 @@
     "Connection Timed Out": "Соединение не отвечает",
     "Continue": "Продолжай",
     "Create": "Создать",
+    "Create documentation": "Создать документацию",
+    "Create category": "Создать категорию",
+    "Create version documentation": "Создать версию документации",
     "Create :name": "Создать :name",
     "Created": "Создано",
     "Delete": "Удалить",

app/application/lang/ru/admin-sections.php

@@ -17,4 +17,6 @@ return [
     'Documentation' => 'Документация',
     'Categories' => 'Категории',
     'Setting up automatic translation' => 'Настройка автоматического перевода',
+    'Documentation not found' => 'Документация не найдена',
+    'No categories found' => 'Категории не найдены',
 ];