use new AppGlideModule class and update proguard rules

app/proguard-rules.pro

@@ -3,29 +3,16 @@
 
 # RetroFit
 -dontwarn retrofit.**
--keep class retrofit.** { *; }
 -keepattributes Signature
 -keepattributes Exceptions
 
 # Glide
--keep public class * implements com.bumptech.glide.module.GlideModule
+-keep public class * extends com.bumptech.glide.module.AppGlideModule
+-keep class com.bumptech.glide.GeneratedAppGlideModuleImpl
 -keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {
     **[] $VALUES;
     public *;
 }
 
-# ButterKnife
--keep class butterknife.** { *; }
--dontwarn butterknife.internal.**
--keep class **$$ViewBinder { *; }
--keepclasseswithmembernames class * {
-    @butterknife.* <fields>;
-}
--keepclasseswithmembernames class * {
-    @butterknife.* <methods>;
-}
-
--keep class !android.support.v7.internal.view.menu.**,** {*;}
-
 # Jellyfin API
 -keepclasseswithmembers class org.jellyfin.apiclient.model.**.* { *; }