GroupChatInfoView: render group members inside the same SectionView card as owner

Previously the members card showed only the current user (owner) and the
add-members button — the actual group members were rendered as separate
LazyColumn items() OUTSIDE the SectionView, so they sat on the gray
canvas without card chrome. Visually inconsistent: owner in a card,
everyone else floating.

Move filteredMembers.value.forEach { ... } INSIDE the SectionView lambda
so every member row is part of the same card as the owner. Drop the
explicit Divider() call (auto-divider handles it now). Move remember
key to member.groupMemberId so per-member state survives reorders.

Trade-off: lazy rendering of member rows is replaced with eager
composition inside a Column. For typical groups (<100 members) this is
imperceptible; very large groups may compose slower on open. Watching
for reports.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupChatInfoView.kt

@@ -721,13 +721,8 @@ fun ModalData.GroupChatInfoLayout(
           SectionItemView(minHeight = 54.dp, padding = PaddingValues(horizontal = DEFAULT_PADDING)) {
             MemberRow(groupInfo.membership, user = true)
           }
-        }
+          filteredMembers.value.forEach { member ->
-      }
+            val showMenu = remember(member.groupMemberId) { mutableStateOf(false) }
-    }
-    if (!groupInfo.nextConnectPrepared && !groupInfo.useRelays) {
-      items(filteredMembers.value, key = { it.groupMemberId }) { member ->
-        Divider()
-        val showMenu = remember { mutableStateOf(false) }
             val canBeSelected = groupInfo.membership.memberRole >= member.memberRole && member.memberRole < GroupMemberRole.Moderator
             SectionItemViewLongClickable(
               click = {
@@ -756,6 +751,8 @@ fun ModalData.GroupChatInfoLayout(
             }
           }
         }
+      }
+    }
     item {
       if (!groupInfo.nextConnectPrepared && !groupInfo.useRelays) {
         SectionDividerSpaced(maxTopPadding = true, maxBottomPadding = false)