fix: R8 removes the Category enum in release build

Signed-off-by: prajwalch <[email protected]>

Author: prajwalch

app/src/main/kotlin/com/prajwalch/torrentsearch/domain/models/Torrent.kt

@@ -1,5 +1,7 @@
 package com.prajwalch.torrentsearch.domain.models
 
+import androidx.annotation.Keep
+
 /** Represents a magnet URI. */
 typealias MagnetUri = String
 
@@ -43,6 +45,7 @@ data class Torrent(
 }
 
 /** Search category. */
+@Keep
 enum class Category(val isNSFW: Boolean = false) {
     All,
     Anime,