fix(file-listing): action bar title when user comes back from preview image

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

app/src/main/java/com/owncloud/android/ui/activity/FileDisplayActivity.kt

@@ -1362,6 +1362,7 @@ class FileDisplayActivity :
         } else if (!ocFileListFragment.isSearchFragment && startFile == null) {
             updateListOfFilesFragment()
             ocFileListFragment.registerFabListener()
+            updateActionBarTitleAndHomeButton(currentDir)
         } else {
             ocFileListFragment.listDirectory(startFile, false)
             updateActionBarTitleAndHomeButton(startFile)