Doc: Adding LightDash Service Connection Docs (#17252)

Co-authored-by: Prajwal Pandit <prajwalpandit@Prajwals-MacBook-Air.local>
Co-authored-by: Shailesh Parmar <shailesh.parmar.webdev@gmail.com>

openmetadata-ui/src/main/resources/ui/public/locales/en-US/Dashboard/Lightdash.md

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+# Lightdash
+
+In this section, we provide guides and references to use the Lightdash connector.
+
+## Connection Details
+
+$$section
+### Host Port $(id="hostPort")
+
+This parameter specifies the network location where your Lightdash instance is accessible, combining both the hostname and the port number. It should be formatted as a URI string, either `http://hostname:port` or `https://hostname:port`, depending on your security requirements.
+
+For example, if you're hosting Lightdash on your local machine, you might use `http://localhost:8080`. If it's deployed on a server, you could use something like `https://lightdash.example.com:3000`.
+
+Make sure that the port specified is open and accessible through your network firewall settings.
+$$
+
+$$section
+### API Key $(id="apiKey")
+
+This parameter is used to authenticate requests made to your Lightdash instance. The API Key should be kept secure and only shared with authorized applications or users. 
+
+To use the API Key, include it in the headers of your HTTP requests as a means of validating your access to the Lightdash API.
+
+For example, in an HTTP request, you might include the API Key like this:
+Authorization: Bearer YOUR_API_KEY
+
+Replace `YOUR_API_KEY` with the actual key provided by your Lightdash instance.
+$$
+
+$$section
+### Project UUID $(id="projectUUID")
+
+This parameter uniquely identifies a project within your Lightdash instance. The Project UUID is a critical piece of information used to associate API requests or configuration settings with a specific project.
+
+You can find the Project UUID in your Lightdash dashboard or through the API, and it should be included in requests that need to target a particular project.
+
+Keep your Project UUID handy when configuring integrations or automating workflows that involve your Lightdash projects.
+$$
+
+$$section
+### Space UUID $(id="spaceUUID")
+
+This parameter identifies a specific "Space" within your Lightdash instance, which is a container for organizing dashboards, charts, and other assets. The Space UUID is used to target a particular space when making API requests or configuring settings.
+
+You can retrieve the Space UUID from your Lightdash dashboard or via the API. It should be included in requests that interact with resources within that space.
+
+Make sure to reference the correct Space UUID when organizing your data or automating tasks to ensure you're interacting with the intended space.
+$$
+
+$$section
+### Proxy Authentication $(id="proxyAuthentication")
+
+This parameter is used to provide credentials when your Lightdash instance needs to authenticate through a proxy server. Proxy authentication ensures that only authorized traffic can pass through the proxy to access external resources or communicate with Lightdash.
+
+When configuring proxy authentication, you typically need to provide a username and password, which are often combined into a single string and passed in the `Proxy-Authorization` header.
+
+Make sure your credentials are securely stored and avoid hardcoding sensitive information directly in your configuration files. Regularly update and rotate credentials to maintain security.
+$$