minor code improvements

app/src/main/java/com/github/libretube/activities/MainActivity.kt

@@ -167,15 +167,13 @@ class MainActivity : BaseActivity() {
                 if (binding.mainMotionLayout.progress == 0F) {
                     try {
                         minimizePlayer()
+                        return
                     } catch (e: Exception) {
-                        if (navController.currentDestination?.id == startFragmentId) {
+                        // current fragment isn't the player fragment
-                            // close app
-                            moveTaskToBack(true)
-                        } else {
-                            navController.popBackStack()
-                        }
                     }
-                } else if (navController.currentDestination?.id == startFragmentId) {
+                }
+
+                if (navController.currentDestination?.id == startFragmentId) {
                     moveTaskToBack(true)
                 } else {
                     navController.popBackStack()

app/src/main/java/com/github/libretube/util/NotificationHelper.kt

@@ -17,8 +17,8 @@ import com.github.libretube.R
 import com.github.libretube.activities.MainActivity
 import com.github.libretube.api.RetrofitInstance
 import com.github.libretube.api.SubscriptionHelper
-import com.github.libretube.extensions.toID
 import com.github.libretube.constants.PreferenceKeys
+import com.github.libretube.extensions.toID
 import kotlinx.coroutines.async
 import kotlinx.coroutines.runBlocking
 import java.util.concurrent.TimeUnit

app/src/main/java/com/github/libretube/util/PlayerHelper.kt

@@ -2,8 +2,8 @@ package com.github.libretube.util
 
 import android.content.Context
 import android.view.accessibility.CaptioningManager
-import com.github.libretube.obj.PipedStream
 import com.github.libretube.constants.PreferenceKeys
+import com.github.libretube.obj.PipedStream
 import com.google.android.exoplayer2.ui.CaptionStyleCompat
 
 object PlayerHelper {