fix: Invite left members

lib/views/invitation_selection.dart

@@ -98,11 +98,13 @@ class _InvitationSelectionState extends State<InvitationSelection> {
               Profile.fromJson({'user_id': '@$text'}),
             ]);
       }
-      foundProfiles.removeWhere((profile) =>
-          widget.room
+      final participants = widget.room
           .getParticipants()
-              .indexWhere((u) => u.id == profile.userId) !=
-          -1);
+          .where((user) =>
+              [Membership.join, Membership.invite].contains(user.membership))
+          .toList();
+      foundProfiles.removeWhere((profile) =>
+          participants.indexWhere((u) => u.id == profile.userId) != -1);
     });
   }
 

lib/views/settings.dart

@@ -550,12 +550,6 @@ class _SettingsState extends State<Settings> {
             ListTile(
               trailing: Icon(Icons.link),
               title: Text(L10n.of(context).license),
-              onTap: () => launch(
-                  'https://gitlab.com/ChristianPauly/fluffychat-flutter/raw/master/LICENSE'),
-            ),
-            ListTile(
-              trailing: Icon(Icons.code),
-              title: Text(L10n.of(context).sourceCode),
               onTap: () => showLicensePage(
                 context: context,
                 applicationIcon:
@@ -563,6 +557,12 @@ class _SettingsState extends State<Settings> {
                 applicationName: AppConfig.applicationName,
               ),
             ),
+            ListTile(
+              trailing: Icon(Icons.code),
+              title: Text(L10n.of(context).sourceCode),
+              onTap: () => launch(
+                  'https://gitlab.com/ChristianPauly/fluffychat-flutter'),
+            ),
           ],
         ),
       ),