refactor: simplify player state

core/model/src/commonMain/kotlin/fr/ajaury/gwenedeg/core/model/Record.kt

@@ -3,8 +3,7 @@ package fr.ajaury.gwenedeg.core.model
 data class Record(
     val id: Int,
     val index: Int,
-    val title: String,
-    val titleTranslation: String? = null,
+    val title: Phrase,
     val audioResourcePath: String,
     val subtitleResourcePath: String,
     val translationSubtitleResourcePath: String? = null,