`FragmentManager has been destroyed` in `FileDisplayActivity`

### Cause of error
```java
Exception in thread "main" java.lang.IllegalStateException: FragmentManager has been destroyed
at androidx.fragment.app.FragmentManager.ensureExecReady(FragmentManager.java:1722)
at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1776)
at androidx.fragment.app.FragmentManager.executePendingTransactions(FragmentManager.java:641)
at com.owncloud.android.ui.activity.FileDisplayActivity.onFileRequestResult(FileDisplayActivity.java:2464)
at com.owncloud.android.ui.activity.FileDisplayActivity.$r8$lambda$MJUt18UKr6OQLTSXT2NXkpJFrd0(Unknown Source:0)
at com.owncloud.android.ui.activity.FileDisplayActivity$$ExternalSyntheticLambda14.invoke(D8$$SyntheticClass:0)
at com.nextcloud.client.core.Task.run$lambda$1(Task.kt:41)
at com.nextcloud.client.core.Task.$r8$lambda$u8Jjo5s6oNnFcuWJ1zRAVw6oOdU(Unknown Source:0)
at com.nextcloud.client.core.Task$$ExternalSyntheticLambda0.run(D8$$SyntheticClass:0)
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:8348)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:582)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1028)

```

### App information
* ID: `com.nextcloud.client`
* Version: `30290290`
* Build flavor: `gplay`

### Device information
* Brand: `Redmi`
* Device: `miel`
* Model: `2201117SG`
* Id: `TP1A.220624.014`
* Product: `miel_global`

### Firmware
* SDK: `33`
* Release: `13`
* Incremental: `V816.0.1.0.TKEMIXM`