Konsist: check if sealed class could be sealed interface and fix existing issues.

libraries/voicerecorder/api/src/main/kotlin/io/element/android/libraries/voicerecorder/api/VoiceRecorderState.kt

@@ -19,11 +19,11 @@ package io.element.android.libraries.voicerecorder.api
 import java.io.File
 import kotlin.time.Duration
 
-sealed class VoiceRecorderState {
+sealed interface VoiceRecorderState {
     /**
      * The recorder is idle and not recording.
      */
-    data object Idle : VoiceRecorderState()
+    data object Idle : VoiceRecorderState
 
     /**
      * The recorder is currently recording.
@@ -31,7 +31,7 @@ sealed class VoiceRecorderState {
      * @property elapsedTime The elapsed time since the recording started.
      * @property levels The current audio levels of the recording as a fraction of 1.
      */
-    data class Recording(val elapsedTime: Duration, val levels: List<Float>) : VoiceRecorderState()
+    data class Recording(val elapsedTime: Duration, val levels: List<Float>) : VoiceRecorderState
 
     /**
      * The recorder has finished recording.
@@ -46,5 +46,5 @@ sealed class VoiceRecorderState {
         val mimeType: String,
         val waveform: List<Float>,
         val duration: Duration,
-    ) : VoiceRecorderState()
+    ) : VoiceRecorderState
 }

libraries/voicerecorder/impl/src/main/kotlin/io/element/android/libraries/voicerecorder/impl/audio/Audio.kt

@@ -16,13 +16,13 @@
 
 package io.element.android.libraries.voicerecorder.impl.audio
 
-sealed class Audio {
+sealed interface Audio {
     class Data(
         val readSize: Int,
         val buffer: ShortArray,
-    ) : Audio()
+    ) : Audio
 
     data class Error(
         val audioRecordErrorCode: Int
-    ) : Audio()
+    ) : Audio
 }