fix(proguard): Don't optimize kotlin classes

Author: jmir1

app/build.gradle.kts

@@ -22,7 +22,7 @@ android {
         applicationId = "xyz.jmir.tachiyomi.mi"
 
         versionCode = 124
-        versionName = "0.16.4.0"
+        versionName = "0.16.4.1"
 
         buildConfigField("String", "COMMIT_COUNT", "\"${getCommitCount()}\"")
         buildConfigField("String", "COMMIT_SHA", "\"${getGitSha()}\"")

app/proguard-rules.pro

@@ -8,11 +8,9 @@
 -keep,allowoptimization class android.content.** { *; }
 -keep,allowoptimization class uy.kohesive.injekt.** { public protected *; }
 -keep,allowoptimization class android.test.base.** { *; }
--keep,allowoptimization class kotlin.** { public protected *; }
+-keep class kotlin.** { public protected *; }
 -keep,allowoptimization class kotlinx.coroutines.** { public protected *; }
 -keep,allowoptimization class kotlinx.serialization.** { public protected *; }
--keep,allowoptimization class kotlin.time.** { public protected *; }
--keep class kotlin.text.** { public protected *; }
 -keep,allowoptimization class okhttp3.** { public protected *; }
 -keep,allowoptimization class okio.** { public protected *; }
 -keep,allowoptimization class org.jsoup.** { public protected *; }