feat: increase suggestion limit from 10 to 25 for mentions

- update mentions query for clarity as distinct is not required

frontend/src/features/conversation/ReplyBoxContent.vue

@@ -193,7 +193,7 @@ const getSuggestions = async (query) => {
       emoji: t.emoji
     }))
 
-  return [...users, ...teams].slice(0, 10)
+  return [...users, ...teams].slice(0, 25)
 }
 
 // Handle mentions changed from editor

internal/conversation/conversation.go

@@ -1294,7 +1294,7 @@ func (c *Manager) makeConversationsListQuery(viewingUserID, userID int, teamIDs
 		case models.MentionedConversations:
 			// Filter to only conversations where user is mentioned (directly or via team)
 			conditions = append(conditions, `conversations.id IN (
-				SELECT DISTINCT cm.conversation_id
+				SELECT cm.conversation_id
 				FROM conversation_mentions cm
 				WHERE cm.mentioned_user_id = $1
 				   OR EXISTS(