multiplatform: voice playing fix (#3046)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/ChatModel.kt

@@ -2089,6 +2089,10 @@ data class CryptoFile(
   val filePath: String,
   val cryptoArgs: CryptoFileArgs?
 ) {
+
+  val isAbsolutePath: Boolean
+    get() = File(filePath).isAbsolute
+
   companion object {
     fun plain(f: String): CryptoFile = CryptoFile(f, null)
   }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/platform/RecAndPlay.kt

@@ -29,7 +29,7 @@ interface AudioPlayerInterface {
   fun stop(fileName: String?)
   fun pause(audioPlaying: MutableState<Boolean>, pro: MutableState<Int>)
   fun seekTo(ms: Int, pro: MutableState<Int>, filePath: String?)
-  fun duration(filePath: String): Int?
+  fun duration(unencryptedFilePath: String): Int?
 }
 
 expect object AudioPlayer: AudioPlayerInterface