Revert "Disable registration"

This reverts commit 1e40e73.

Author: strugee

inventory/group_vars/matrix_servers.yml

@@ -18,7 +18,7 @@ matrix_static_files_container_labels_base_domain_root_path_redirection_url: http
 matrix_server_fqn_matrix: "matrix.{{ now(fmt='%Y') }}.seagl.org"
 
 # Enable or disable this when the time is right
-matrix_synapse_enable_registration: false
+matrix_synapse_enable_registration: true
 matrix_synapse_registration_requires_token: true
 
 # Raise rate limits for bursty usage patterns