Add id snippet (#10)

* Add id snippet

Author: HeinrichvonStein

.gitignore

@@ -1,2 +1,3 @@
 .DS_Store
-.vscode/
+.vscode/
+.idea

usage/installation/client-side-setup/define-your-schema.mdx

@@ -11,6 +11,8 @@ This schema represents a "view" of the downloaded data. No migrations are requir
 In the [PowerSync Dashboard](/usage/tools/powersync-dashboard), the schema can be generated based off your [Sync Rules](/usage/sync-rules) by right-clicking on an instance and selecting **Generate client-side schema**. Currently, the schema can be generated in JavaScript or Dart. Support for Kotlin is coming soon.
 
 Similar functionality exists in the PowerSync [CLI](/usage/tools/cli).
+
+**Note:** The generated schema will exclude the `id` column, as the client SDK automatically creates an `id` column of type `text`. Consequently, it is not necessary to specify an `id` column in your schema. For additional information on IDs, refer to [Client ID](/usage/sync-rules/client-id).
 </Info>
 
 ## Example implementation