🔄 **Refactor and extend meetup membership-based authorization**

- Updated `authorizeAccess` to restrict `meetups.edit` views and updates to users in "My-Meetups".
- Attached creators to `meetup_user` pivot for default membership.
- Adjusted related tests to validate membership-based edit permissions.

📱 **Improve sidebar and mobile navigation accessibility**
- Added `aria-labels` to improve screen reader support for sidebar and mobile header elements.
- Updated desktop and mobile user menus alignment for consistency.

⚡ **Enhance Lightning login flow**
- Introduced `lightningLoginInProgress` for smoother polling synchronization with the redirect flow.
- Updated logic to dispatch `lightning-login-ready` event instead of immediate redirect, avoiding race conditions.

resources/views/livewire/meetups/create.blade.php

@@ -83,7 +83,12 @@ class extends Component {
             'visible_on_map' => ['boolean'],
         ]);
 
-        $meetup = Meetup::create($validated);
+        $meetup = Meetup::create($validated + ['created_by' => auth()->id()]);
+
+        // Attach the creator to meetup_user so they appear under "My-Meetups"
+        // and pass the new edit-permission check (which is based on this pivot,
+        // not on created_by).
+        $meetup->users()->attach(auth()->id());
 
         if ($this->logo) {
             $meetup