Add Italian and German translations for OmniPrice module, implement cron job controller, and create front index file

- Added Italian translations for various module strings in it.php.
- Added German translations for various module strings in de.php.
- Implemented Gm_OmniPriceCronModuleFrontController to handle cron actions such as indexing, cleanup, and filling missing cache.
- Created index.php file to redirect access to the module's front controller.

modules/gm_omniprice/CHANGELOG

@@ -1,7 +1,27 @@
+## [1.3.1] - 2025-08-26
+### Changed
+
+- cache use optimization for SQL queries
+
+## [1.3.0] - 2025-06-23
+### Changed
+
+- scripts changed to controllers for PrestaShop 9 compatibility
+
+## [1.2.13] - 2025-04-07
+### Changed
+
+- database performance optimization
+
+## [1.2.12] - 2025-01-13
+### Changed
+
+- groupinc module support in cron.php script
+
 ## [1.2.11] - 2024-12-19
 ### Changed
 
-- More conservative approach to cleaning prices
+- More conservative approach to cleaning old prices
 
 ## [1.2.10] - 2024-12-09
 ### Changed