Migrate to Rais 8.0

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

app/controllers/application_controller.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 class ApplicationController < ActionController::Base
+  include Authentication
   include Pagy::Backend
 
   # allow_browser versions: :modern
@@ -13,15 +14,29 @@ class ApplicationController < ActionController::Base
   def initialize_navbar
     return unless request.get?
 
-    @navbar_items = if rodauth.logged_in?
+    @navbar_items = if authenticated?
       [
-        { label: "Dashboard",                       icon: :speedometer2,   path: :root },
-        { label: Report.model_name.human(count: 2), icon: :'journal-text', path: :reports },
-        { label: I18n.t("backoffice"),              icon: :gear,         path: :backoffice, active: %w[backoffice checklists checks links link_categories].include?(controller_name) },
-        { label: Account.model_name.human,          icon: :person,         path: profile_path }
+        {
+          label: "Dashboard",
+          icon: :speedometer2,
+          path: :root
+        },
+        {
+          label: Report.model_name.human(count: 2),
+          icon: :'journal-text',
+          path: :reports },
+        {
+          label: I18n.t("backoffice"),
+          icon: :gear,
+          path: :backoffice,
+          active: %w[backoffice checklists checks links link_categories].include?(controller_name) },
+        {
+          label: "Konto",
+          path: profile_path
+        }
       ]
     else
-      [ { label: "Login", icon: :'door-closed', path: rodauth.login_path, label_class: "text-info" } ]
+      [ { label: "Login", icon: :'door-closed', path: new_session_path, label_class: "text-info" } ]
     end
     @nav_path = controller_name
     @search_url = nil