Error when clicking on the "Switch to video" button in the audio player until the next video is played

[Figim]

Steps to reproduce

1. Switch to Audio Mode
2. Click the button for the next audio
3. Switch to "Video Player" until the video is played.
4. Error

Expected behavior

Make no error. Sometimes our hand accidentally touches a button

Actual behavior

XRecorder_20260429_02.mp4

LibreTube version

31.1 (67)

Android version

Android 13

Other details

java.lang.NullPointerException
at com.github.libretube.ui.fragments.PlayerFragment.onViewCreated$lambda$1(PlayerFragment.kt:445)
at com.github.libretube.ui.fragments.PlayerFragment$$ExternalSyntheticLambda16.invoke(D8$$SyntheticClass:0)
at com.github.libretube.ui.fragments.PlayerFragment$sam$androidx_lifecycle_Observer$0.onChanged(Unknown Source:2)
at androidx.lifecycle.LiveData.considerNotify(LiveData.java:134)
at androidx.lifecycle.LiveData.dispatchingValue(LiveData.java:147)
at androidx.lifecycle.LiveData$ObserverWrapper.activeStateChanged(LiveData.java:482)
at androidx.lifecycle.LiveData$LifecycleBoundObserver.onStateChanged(LiveData.java:439)
at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent(LifecycleRegistry.jvm.kt:316)
at androidx.lifecycle.LifecycleRegistry.forwardPass(LifecycleRegistry.jvm.kt:253)
at androidx.lifecycle.LifecycleRegistry.sync(LifecycleRegistry.jvm.kt:291)
at androidx.lifecycle.LifecycleRegistry.moveToState(LifecycleRegistry.jvm.kt:136)
at androidx.lifecycle.LifecycleRegistry.handleLifecycleEvent(LifecycleRegistry.jvm.kt:119)
at androidx.fragment.app.FragmentViewLifecycleOwner.handleLifecycleEvent(FragmentViewLifecycleOwner.java:100)
at androidx.fragment.app.Fragment.performStart(Fragment.java:3199)
at androidx.fragment.app.FragmentStateManager.start(FragmentStateManager.java:648)
at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:304)
at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2214)
at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2109)
at androidx.fragment.app.FragmentManager.execSingleAction(FragmentManager.java:2002)
at androidx.fragment.app.BackStackRecord.commitNow(BackStackRecord.java:317)
at com.github.libretube.helpers.NavigationHelper.openVideoPlayerFragment(NavigationHelper.kt:303)
at com.github.libretube.helpers.NavigationHelper.openVideoPlayerFragment$default(NavigationHelper.kt:192)
at com.github.libretube.ui.fragments.AudioPlayerFragment.switchToVideoMode(AudioPlayerFragment.kt:278)
at com.github.libretube.ui.fragments.AudioPlayerFragment.onViewCreated$lambda$12(AudioPlayerFragment.kt:187)
at com.github.libretube.ui.fragments.AudioPlayerFragment$$ExternalSyntheticLambda4.onClick(D8$$SyntheticClass:0)
at android.view.View.performClick(View.java:7892)
at android.widget.TextView.performClick(TextView.java:16220)
at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1729)
at android.view.View.performClickInternal(View.java:7869)
at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
at android.view.View$PerformClick.run(View.java:30891)
at android.os.Handler.handleCallback(Handler.java:942)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:226)
at android.os.Looper.loop(Looper.java:313)
at android.app.ActivityThread.main(ActivityThread.java:8762)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:604)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1067)

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