Migrate to Rais 8.0

- Remove all Rodauth stuff and implement simple custom auth
- Migrate from sprockets to propshaft, hack some bootstrap stuff

test/controllers/links_controller_test.rb

@@ -2,24 +2,14 @@
 
 require "test_helper"
 
-class LinksControllerTest < ActionDispatch::IntegrationTest
-  def login(email, password)
-    post "/login", params: { email: email, password: password }
-    assert_redirected_to "/"
-  end
-
-  def logout
-    post "/logout"
-    assert_redirected_to "/"
-  end
-
+class LinksControllerTest < ::ControllerTest
   teardown do
     logout
   end
 
   setup do
     @link = links(:one)
-    Account.create(email: "test@example.com", password: "password")
+    User.create!(email_address: "test@example.com", password: "password")
     login("test@example.com", "password")
   end