fix: Unban

lib/matrix_api/matrix_api.dart

@@ -1023,8 +1023,8 @@ class MatrixApi {
   /// would otherwise be allowed to join according to its join rules.
   /// https://matrix.org/docs/spec/client_server/r0.6.1#post-matrix-client-r0-rooms-roomid-unban
   Future<void> unbanInRoom(String roomId, String userId) async {
-    await request(
-        RequestType.POST, '/client/r0/rooms/${Uri.encodeComponent(roomId)}/ban',
+    await request(RequestType.POST,
+        '/client/r0/rooms/${Uri.encodeComponent(roomId)}/unban',
         data: {
           'user_id': userId,
         });

lib/src/user.dart

@@ -163,10 +163,7 @@ class User extends Event {
   Presence get presence => room.client.presences[id];
 
   /// Whether the client is able to ban/unban this user.
-  bool get canBan =>
-      membership != Membership.ban &&
-      room.canBan &&
-      powerLevel < room.ownPowerLevel;
+  bool get canBan => room.canBan && powerLevel < room.ownPowerLevel;
 
   /// Whether the client is able to kick this user.
   bool get canKick =>