feat: improve Objc/Swift experience with HiddenFromObjc (#62)

* add HiddenFromObjc

* Update changelog

* add kotlin badge

Author: buenaflor

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+### Features
+
+- Improve Objc/Swift experience with @HiddenFromObjc ([#62](https://github.com/getsentry/sentry-kotlin-multiplatform/pull/62))
+
 ## 0.0.3
 
 ### Fixes

README.md

@@ -11,6 +11,8 @@
 This project is an experimental SDK for Kotlin Multiplatform.
 This SDK is a wrapper around different platforms such as JVM, Android, iOS, macOS, watchOS, tvOS that can be used on Kotlin Multiplatform.
 
+[![Kotlin](https://img.shields.io/badge/Kotlin-1.8.0-blue.svg?style=flat&logo=kotlin)](https://kotlinlang.org)
+
 | Packages                                | Maven Central
 |-----------------------------------------| -------
 | sentry-kotlin-multiplatform                          | [![Maven Central](https://maven-badges.herokuapp.com/maven-central/io.sentry/sentry-kotlin-multiplatform/badge.svg)](https://maven-badges.herokuapp.com/maven-central/io.sentry/sentry-kotlin-multiplatform)

sentry-kotlin-multiplatform/src/commonMain/kotlin/io/sentry/kotlin/multiplatform/SentryKMP.kt

@@ -4,6 +4,8 @@ import io.sentry.kotlin.multiplatform.protocol.Breadcrumb
 import io.sentry.kotlin.multiplatform.protocol.SentryId
 import io.sentry.kotlin.multiplatform.protocol.User
 import io.sentry.kotlin.multiplatform.protocol.UserFeedback
+import kotlin.experimental.ExperimentalObjCRefinement
+import kotlin.native.HiddenFromObjC
 
 typealias ScopeCallback = (Scope) -> Unit
 typealias OptionsConfiguration = (SentryOptions) -> Unit
@@ -19,6 +21,8 @@ object Sentry {
      * @param context: The context (used for retrieving Android Context)
      * @param configuration Options configuration handler.
      */
+    @OptIn(ExperimentalObjCRefinement::class)
+    @HiddenFromObjC
     fun init(context: Context, configuration: OptionsConfiguration) {
         SentryBridge.init(context, configuration)
     }

sentry-samples/kmp-app/iosApp/iosApp/iOSApp.swift

@@ -3,15 +3,15 @@ import shared
 
 @main
 struct iOSApp: App {
-    let sentry = Sentry()
-
+    let sentry = Sentry.shared
+    
     init() {
         // Initialize Sentry using shared code
         AppSetupKt.initializeSentry()
 
         // Shared scope across all platforms
         AppSetupKt.configureSentryScope()
-
+        
         // Add platform specific scope in addition to the shared scope
         sentry.configureScope { scope in
             scope.setContext(key: "iOS Context", value: [