Use some more KTX and Compat stuff (#3933)

* Use more KTX extensions

* Update Android Studio

* Use more Compat classes

app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt

@@ -3,9 +3,9 @@ package eu.kanade.tachiyomi.data.library
 import android.app.Service
 import android.content.Context
 import android.content.Intent
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.core.content.ContextCompat
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
@@ -113,11 +113,7 @@ class LibraryUpdateService(
                     putExtra(KEY_TARGET, target)
                     category?.let { putExtra(KEY_CATEGORY, it.id) }
                 }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)
 
                 return true
             }