Add Timber file logging and Jellyfin log upload

app/src/main/java/hu/bbara/purefin/PurefinApplication.kt

@@ -2,8 +2,12 @@ package hu.bbara.purefin
 
 import android.app.Application
 import dagger.hilt.android.HiltAndroidApp
+import hu.bbara.purefin.core.logging.PurefinLogger
 
 @HiltAndroidApp
 class PurefinApplication : Application() {
-
-}
+    override fun onCreate() {
+        super.onCreate()
+        PurefinLogger.initialize(this)
+    }
+}