fix preqconditioner

src/zeroband/optimizers/__init__.py

@@ -43,9 +43,9 @@ def get_optimizer(params: list[torch.nn.Parameter], config: OptimizersConfig) ->
             lr=config.lr,
             betas=(config.betas1, config.betas2),
             epsilon=1e-12,
-            weight_decay=1e-05,
-            max_preconditioner_dim=8192,
-            precondition_frequency=100,
+            weight_decay=config.weight_decay,
+            max_preconditioner_dim=config.max_preconditioner_dim,
+            precondition_frequency=config.precondition_frequency,
             use_decoupled_weight_decay=True,
             # This can also be set to `QREigenvalueCorrectionConfig` which is less expensive
             # and might therefore allow for a smaller `precondition_frequency`.