docs: Kotlin documentation improvements (supabase#30676)

* Add note about the minimum Android SDK version and add missing Kotlin snippets

* Prettier

Author: jan-tennert

apps/docs/content/guides/auth/auth-anonymous.mdx

@@ -148,10 +148,10 @@ try await supabase.auth.updateUser(
 </TabPanel>
 <TabPanel id="kotlin" label="Kotlin">
 
-You can use the [`modifyUser()`](/docs/reference/kotlin/auth-updateuser) method to link an email or phone identity to the anonymous user.
+You can use the [`updateUser()`](/docs/reference/kotlin/auth-updateuser) method to link an email or phone identity to the anonymous user.
 
 ```kotlin
-supabase.auth.modifyUser {
+supabase.auth.updateUser {
     email = "[email protected]"
 }
 ```

apps/docs/content/guides/auth/debugging/error-codes.mdx

@@ -59,16 +59,15 @@ Errors originating from the server API classed as `AuthApiError` always have a `
 
 </TabPanel>
 <TabPanel id="kotlin" label="Kotlin">
-All errors originating from the `supabase.auth` namespace of the JavaScript client library will be wrapped by the `AuthError` class.
+All exceptions originating from the `supabase.auth` namespace of the Kotlin client library will be a subclass of `RestException`.
 
-Error objects are split in a few classes:
+Rest exceptions are split into a few classes:
 
-- `AuthApiError` -- errors which originate from the Supabase Auth API.
-  - Use `isAuthApiError` instead of `instanceof` checks to see if an error you caught is of this type.
-- `CustomAuthError` -- errors which generally originate from state in the client library.
-  - Use the `name` property on the error to identify the class of error received.
+- `AuthRestException` -- exceptions which originate from the Supabase Auth API and have a `errorCode` property that can be used to identify the error returned by the server.
+- `AuthWeakPasswordException` -- an `AuthRestException` which indicates that the password is too weak.
+- `AuthSessionMissingException` -- an `AuthRestException` which indicates that the session is missing, if the user was logged out or deleted.
 
-Errors originating from the server API classed as `AuthApiError` always have a `code` property that can be used to identify the error returned by the server. The `status` property is also present, encoding the HTTP status code received in the response.
+All instances and subclasses of a `AuthRestException` have a `errorCode` property that can be used to identify the error returned by the server.
 
 </TabPanel>
 

apps/docs/content/guides/auth/phone-login.mdx

@@ -215,6 +215,15 @@ try await supabase.auth.updateUser(
 )
 ```
 
+</TabPanel>
+<TabPanel id="kotlin" label="Kotlin">
+
+```kotlin
+supabase.auth.updateUser {
+    phone = "123456789"
+}
+```
+
 </TabPanel>
 <TabPanel id="python" label="Python">
 

apps/docs/docs/ref/kotlin/installing.mdx

@@ -30,6 +30,8 @@ custom_edit_url: https://github.com/supabase/supabase/edit/master/web/spec/supab
 
         Checkout the different READMEs for information about supported Kotlin targets.
 
+        *Note that the minimum Android SDK version is 26. For lower versions, you need to enable [core library desugaring](https://developer.android.com/studio/write/java8-support#library-desugaring).*
+
     </RefSubLayout.Details>
     <RefSubLayout.Examples>
         <Tabs