revert java version bump until android studio has better support

app/build.gradle

@@ -52,13 +52,13 @@ android {
     compileOptions {
         coreLibraryDesugaringEnabled true
 
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
 }
 
 dependencies {
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.20'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.21'
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.0'
 
     implementation 'com.github.jellyfin.jellyfin-apiclient-java:android:0.7.3'

app/proguard-rules.pro

@@ -1,9 +1,9 @@
 -dontwarn
 -ignorewarnings
 
--keep class com.dkanada.gramophone.**.* { *; } # Keep all Gelli classes and attributes
--keepnames class **.* { *; } # Keep class and attribute names
--keepattributes SourceFile,LineNumberTable # Keep file names/line numbers
+-keep class com.dkanada.gramophone.**.* { *; }
+-keepnames class **.* { *; }
+-keepattributes SourceFile,LineNumberTable
 
 # Jellyfin API
 -keepclasseswithmembers class org.jellyfin.apiclient.model.**.* { *; }