clear actMode of adapters on destroy

app/src/main/kotlin/com/simplemobiletools/gallery/adapters/DirectoryAdapter.kt

@@ -113,6 +113,7 @@ class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Direc
             super.onDestroyActionMode(actionMode)
             views.forEach { toggleItemSelection(it, false) }
             markedItems.clear()
+            actMode = null
         }
 
         fun checkHideBtnVisibility(menu: Menu, positions: List<Int>) {

app/src/main/kotlin/com/simplemobiletools/gallery/adapters/MediaAdapter.kt

@@ -100,6 +100,7 @@ class MediaAdapter(val activity: SimpleActivity, var media: MutableList<Medium>,
             super.onDestroyActionMode(actionMode)
             views.forEach { toggleItemSelection(it, false) }
             markedItems.clear()
+            actMode = null
         }
     }