refactor(VoicesAdapter): fully migrate to ListAdapter removing custom list wrappers

- Removed legacy `updateList()`, `submitListSafely()`, `addItem()`, and `refreshCurrentItems()` methods from `VoicesAdapter.kt`.
- Updated caller usages in `ReplyActivity`, `VoicesFragment`, and `TeamsVoicesFragment` to directly call `ListAdapter.submitList()`.
- Updated `BaseVoicesFragment` to correctly utilize `adapter.submitList(adapter.currentList.toList())` for `refreshCurrentItems()` logic when reacting to Realm mutations.
This cleanly removes all redundant list management from the adapter class.

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: dogi

app/src/main/java/org/ole/planet/myplanet/base/BaseVoicesFragment.kt

@@ -69,13 +69,13 @@ abstract class BaseVoicesFragment : BaseContainerFragment(), OnNewsItemClickList
             if (result.resultCode == Activity.RESULT_OK) {
                 val newsId = result.data?.getStringExtra("newsId")
                 newsId.let { adapterNews?.updateReplyBadge(it) }
-                adapterNews?.notifyDataSetChanged()
+                adapterNews?.submitList(adapterNews?.currentList?.toList())
             }
         }
     }
 
     override fun onDataChanged() {
-        adapterNews?.notifyDataSetChanged()
+        adapterNews?.submitList(adapterNews?.currentList?.toList())
     }
 
     override fun onReplyPosted(newsId: String?) {