Make login & signup routes easier to create

[Buscedv]

Make it easier to create basic login & signup routes. This could be solved with templating (a new concept that doesn't exist yet)

With a decorator:

&_login
@post('/login'):

With templating

&protected
@post('/login'):
  %_login%

[Buscedv]

This is not really possible since this would require the database user table to be behind-the-scenes configured as well, which is not really practical.