fix(moderation): don't show pending invitation for users already in room

Fixed logic error where users currently in the room would still show
a "Pending invitation" indicator in the History tab. The invitation
status should only be displayed for users who are:
- Not currently in the room
- Not banned
- Have a pending invitation

This prevents the confusing UI state where a user appears to be
both "In Room" and have a "Pending invitation" at the same time.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

apps/web/src/components/nav/ModerationPanel.tsx

@@ -913,7 +913,8 @@ export function ModerationPanel({
                                         {new Date(member.firstJoinedAt).toLocaleDateString()}
                                       </div>
                                       {member.invitationStatus === 'pending' &&
-                                        !member.isBanned && (
+                                        !member.isBanned &&
+                                        !member.isCurrentlyInRoom && (
                                           <div
                                             style={{
                                               fontSize: '11px',