fix(file-display-activity): commit fragment

[alperozturk96]

Issue

Exception java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
  at androidx.fragment.app.FragmentManager.checkStateLoss (FragmentManager.java:1862)
  at androidx.fragment.app.FragmentManager.enqueueAction (FragmentManager.java:1902)
  at androidx.fragment.app.BackStackRecord.commitInternal (BackStackRecord.java:342)
  at androidx.fragment.app.BackStackRecord.commit (BackStackRecord.java:306)
  at com.owncloud.android.ui.activity.FileDisplayActivity.commitFragment (FileDisplayActivity.kt:746)
  at com.owncloud.android.ui.activity.FileDisplayActivity.setLeftFragment (FileDisplayActivity.kt:717)
  at com.owncloud.android.ui.activity.FileDisplayActivity.setLeftFragment (FileDisplayActivity.kt:807)
  at com.owncloud.android.ui.activity.FileDisplayActivity.onFileRequestResult (FileDisplayActivity.kt:3181)
  at com.owncloud.android.ui.activity.FileDisplayActivity.openFileByPath$lambda$0 (FileDisplayActivity.kt:3164)
  at com.owncloud.android.ui.activity.FileDisplayActivity$$ExternalSyntheticLambda3.invoke (D8$$SyntheticClass)
  at com.nextcloud.client.core.Task.run$lambda$1 (Task.kt:42)
  at com.nextcloud.client.core.Task$$ExternalSyntheticLambda1.run (D8$$SyntheticClass)
  at android.os.Handler.handleCallback (Handler.java:942)
  at android.os.Handler.dispatchMessage (Handler.java:99)
  at android.os.Looper.loopOnce (Looper.java:211)
  at android.os.Looper.loop (Looper.java:300)
  at android.app.ActivityThread.main (ActivityThread.java:8296)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:559)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:954)

[github-actions]

Codacy

SpotBugs

Category	Base	New
Bad practice	32	32
Correctness	66	66
Dodgy code	213	213
Experimental	1	1
Malicious code vulnerability	2	2
Multithreaded correctness	29	29
Performance	41	41
Security	19	19
Total	403	403

[github-actions]

blue-Light-Screenshot test failed, but no output was generated. Maybe a preliminary stage failed.

[github-actions]

master-IT test failed: https://www.kaminsky.me/nc-dev/android-integrationTests/17321-IT-master-15-35