fix(docs): update integration paths and add Zendesk integration image in O2S 1.5.0 release notes

Author: marcinkrasowski

apps/docs/blog/releases/o2s/1.5.0.md

@@ -58,6 +58,8 @@ For organization-level access control, roles vs. permissions, and multi-organiza
 
 The [Zendesk integration](../../../docs/integrations/tickets/zendesk/overview) now supports creating tickets end-to-end, in addition to viewing and listing them.
 
+![zendesk integration](../../../static/img/blog/o2s-zendesk-integration.png)
+
 - You can now create new tickets via the Tickets API. The Zendesk integration implements `createTicket` and forwards requests to the Zendesk API.
   - Attachments are supported when creating tickets.
   - Custom field mapping is handled by the `ZendeskFieldMapper`. Configure environment variables (e.g., `ZENDESK_DEVICE_NAME_FIELD_ID`) and add corresponding entries in your CMS mappers to display custom field labels in the UI.

apps/docs/docs/integrations/overview.md

@@ -22,7 +22,7 @@ import DocLinkTiles from '@site/src/components/DocLinkTiles';
 items={[
 { title: 'Strapi CMS', description: 'Headless CMS integration for content & page management.', href: '/docs/integrations/cms/strapi/overview' },
 { title: 'Contentful CMS', description: 'CMS for multi-language content and marketing blocks.', href: '/docs/integrations/cms/contentful/overview' },
-{ title: 'Redis Cache', description: 'High-performance caching with Redis to be used with our API Harmonization server.', href: '/docs/integrations/cache/redis' },
+{ title: 'Redis Cache', description: 'High-performance caching with Redis to be used with our API Harmonization server.', href: '/docs/integrations/cache/redis/overview' },
 { title: 'Medusa Commerce', description: 'Initial integration, currently provides basic product data.', href: '/docs/integrations/commerce/medusa-js/overview' },
 { title: 'Algolia Search', description: 'The AI search platform, used for knowledge base search.', href: '/docs/integrations/search/algolia/overview' },
 { title: 'SurveyJS Forms', description: 'Dynamic form creation and ticket submission. Used as a default engine for our ticket submission handling.', href: '/docs/integrations/forms/surveyjs/overview' },