Build with filtered source

Further nixos module fixes
Add tailwind and esbuild to assets build
Handle domain on session cookies correctly

lib/sso_bsn/accounts/user_token.ex

@@ -41,7 +41,7 @@ defmodule SsoBsn.Accounts.UserToken do
   end
 
   def build_login_token(user) do
-    token = Base.encode64(:crypto.strong_rand_bytes(@rand_size))
+    token = Base.url_encode64(:crypto.strong_rand_bytes(@rand_size))
     {token, %UserToken{token: token, context: "login", user_id: user.id}}
   end