GitLab

* Add `init_weights` method to `FlaxMixin`

* Rn `random_state` -> `shape_state`

* `PRNGKey(0)` for `jax.eval_shape`

* No allow mismatched sizes

* Update src/diffusers/modeling_flax_utils.py
Co-authored-by: Suraj Patil <surajp815@gmail.com>

* Update src/diffusers/modeling_flax_utils.py
Co-authored-by: Suraj Patil <surajp815@gmail.com>

* docstring diffusers
Co-authored-by: Suraj Patil <surajp815@gmail.com>