chore: Update database image paths in knowledge base

src/content/docs/databases/index.mdx

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+---
+title: Introduction
+head:
+  - tag: "meta"
+    attrs:
+        property: "og:title"
+        content: "Databases you can host with Coolify"
+description: "An overview of the databases supported by Coolify and their characteristics."
+---
+
+import { Aside } from '@astrojs/starlight/components';
+
+Coolify supports a variety of databases to suit different application needs. Even if you don't see your favorite database here, you can still host it with Coolify, using Docker.
+
+Coolify offers one-click setup for the following databases:
+
+- [PostgreSQL](/docs/knowledge-base/databases/postgresql)
+- [Redis](/docs/knowledge-base/databases/redis)
+- [DragonFly](/docs/knowledge-base/databases/dragonfly)
+- [KeyDB](/docs/knowledge-base/databases/keydb)
+- [Clickhouse](/docs/knowledge-base/databases/clickhouse)
+- [MongoDB](/docs/knowledge-base/databases/mongodb)
+- [MySQL](/docs/knowledge-base/databases/mysql)
+- [MariaDB](/docs/knowledge-base/databases/mariadb)
+
+Each database has its own strengths and use cases. Click on a database to learn more about it.
+
+# Deploy a database
+
+When selecting a New Resource, you can select a database from the list.
+
+
+![New Resource](../../../assets/images/screenshots/How-to-add-a-database.png)
+
+You can configure a database with a simple click. Coolify supports the following databases:
+
+- PostgreSQL
+- MySQL
+- MariaDB
+- MongoDB
+- Redis
+- DragonFly
+- KeyDB
+- Clickhouse
+
+## Ports Mapping vs Public Port
+
+### Ports Mapping
+
+Ports mapping is using the Docker [port mapping](https://docs.docker.com/network/#published-ports) feature. It is used to map the container port to the host port. For example, if you set the port mapping to `8080:80`, the container port `80` will be mapped to the host port `8080`.
+
+### Public Port
+
+Public port is used to expose the container port to the internet, by starting an Nginx TCP proxy.
+
+### Which one should I use?
+
+- Port mappings makes the connection/port permanent (you need to restart your database to change it).
+- The public port makes the connection/port dynamic (you can change it without restarting the database, Coolify will restart the Nginx TCP proxy for you).
+
+## Access database during builds
+
+If you are using `Nixpacks` build pack, you have two ways to access your database during builds:
+
+1. Database & your application are `in the same network`: You can reach it using the `internal URL` provided by Coolify.
+2. Database & your application `are not in the same network`: You need to set your database to be `Accessible over the internet` and use the `public URL` provided by Coolify.