The following crash could occur when trying to import an icon pack for
which an empty folder still exists on disk:
```
Exception java.lang.IndexOutOfBoundsException: Index -1 out of bounds for length 1
at jdk.internal.util.Preconditions.outOfBounds (Preconditions.java:64)
at jdk.internal.util.Preconditions.outOfBoundsCheckIndex (Preconditions.java:70)
at jdk.internal.util.Preconditions.checkIndex (Preconditions.java:266)
at java.util.Objects.checkIndex (Objects.java:359)
at java.util.ArrayList.remove (ArrayList.java:511)
at com.beemdevelopment.aegis.ui.views.IconPackAdapter.removeIconPack (IconPackAdapter.java:38)
at com.beemdevelopment.aegis.ui.fragments.preferences.IconPacksManagerFragment.removeIconPack (IconPacksManagerFragment.java:158)
at com.beemdevelopment.aegis.ui.fragments.preferences.IconPacksManagerFragment.lambda$importIconPack$3 (IconPacksManagerFragment.java:133)
at androidx.appcompat.app.AlertController$ButtonHandler.handleMessage (AlertController.java:167)
at android.os.Handler.dispatchMessage (Handler.java:106)
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
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:604)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1067)
```
To reproduce on a debug build of Aegis with the latest aegis-icons
imported into the app, run the following commands and then try to import
the same aegis-icons ZIP again:
```
$ adb shell
$ su
# rm -r /data/data/com.beemdevelopment.aegis.debug/files/icons/c1018b93-4e8c-490a-b575-30dde62a833e/20230523/*
```
This fixes the following crash I noticed in the developer console:
```
Exception java.lang.AssertionError:
at com.beemdevelopment.aegis.util.UUIDMap.getByUUID (UUIDMap.java:127)
at com.beemdevelopment.aegis.vault.VaultRepository.getEntryByUUID (VaultRepository.java:229)
at com.beemdevelopment.aegis.ui.fragments.preferences.AuditLogPreferencesFragment.lambda$onViewCreated$0 (AuditLogPreferencesFragment.java:70)
at androidx.lifecycle.LiveData.considerNotify (LiveData.java:133)
at androidx.lifecycle.LiveData.dispatchingValue (LiveData.java:151)
at androidx.lifecycle.LiveData.setValue (LiveData.java:309)
at androidx.lifecycle.LiveData$1.run (LiveData.java:93)
at android.os.Handler.handleCallback (Handler.java:959)
at android.os.Handler.dispatchMessage (Handler.java:100)
at android.os.Looper.loopOnce (Looper.java:232)
at android.os.Looper.loop (Looper.java:317)
at android.app.ActivityThread.main (ActivityThread.java:8592)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:580)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:878)
```
This is another attempt to fix a rare crash we're seeing in the
developer console:
```
Exception android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?
at android.view.ViewRootImpl.setView (ViewRootImpl.java:1423)
at android.view.WindowManagerGlobal.addView (WindowManagerGlobal.java:408)
at android.view.WindowManagerImpl.addView (WindowManagerImpl.java:148)
at android.widget.PopupWindow.invokePopup (PopupWindow.java:1583)
at android.widget.PopupWindow.showAsDropDown (PopupWindow.java:1430)
at android.widget.PopupWindow.showAsDropDown (PopupWindow.java:1386)
at com.beemdevelopment.aegis.ui.AuthActivity.lambda$showPasswordReminder$5 (AuthActivity.java:253)
at android.os.Handler.handleCallback (Handler.java:942)
at android.os.Handler.dispatchMessage (Handler.java:99)
at android.os.Looper.loopOnce (Looper.java:211)
at android.os.Looper.loop (Looper.java:300)
at android.app.ActivityThread.main (ActivityThread.java:8294)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:580)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1028)
```
