Group message deletion

libsession/src/main/java/org/session/libsession/database/ServerHashToMessageId.kt

@@ -2,7 +2,11 @@ package org.session.libsession.database
 
 data class ServerHashToMessageId(
     val serverHash: String,
+    /**
+     * This will only be the "sender" when the message is incoming.
+     */
     val sender: String,
     val messageId: Long,
     val isSms: Boolean,
+    val isOutgoing: Boolean,
 )

libsession/src/main/java/org/session/libsession/messaging/groups/GroupManagerV2.kt

@@ -80,7 +80,7 @@ interface GroupManagerV2 {
      * It can be called by a regular member who wishes to delete their own messages.
      * It can also called by an admin, who can delete any messages from any member.
      */
-    suspend fun requestMessageDeletion(groupId: AccountId, messageHashes: List<String>)
+    suspend fun requestMessageDeletion(groupId: AccountId, messageHashes: Set<String>)
 
     /**
      * Handle a request to delete a member's content from the group. This is called when we receive