Update initialization parameters in Authly module and authorization handler for consistency

- Added trailing commas to initialization parameters in both the Authly module and the authorization handler for improved readability and consistency across the codebase.

Author: eliasjpr

src/authly/client.cr

@@ -23,7 +23,7 @@ module Authly
       @jarm_signing_alg = nil,
       @jarm_encryption_alg = nil,
       @jarm_encryption_enc = nil,
-      @public_key = nil
+      @public_key = nil,
     )
     end
   end

src/authly/handlers/authorization_handler.cr

@@ -244,7 +244,7 @@ module Authly
       token_type : String? = nil,
       expires_in : Int64? = nil,
       scope : String? = nil,
-      id_token : String? = nil
+      id_token : String? = nil,
     )
       # Determine response mode (use client/global default if not specified)
       mode = response_mode