Acceptance Criteria (Required on creation):

• Web application documentation consistently reflects the new syntax for configuration via config.js based on JavaScript modules
• Guides that use the new syntax already:
  • https://docs.camunda.org/manual/7.15/webapps/cockpit/extend/configuration/
• Guides that need to be updated:
  • https://docs.camunda.org/manual/7.15/webapps/admin/configuration/
  • https://docs.camunda.org/manual/7.15/webapps/tasklist/configuration/

Hints (Optional):

• The migration guide covers the necessary changes for all three web apps correctly already: https://docs.camunda.org/manual/7.15/update/minor/714-to-715/#changes-to-the-webapp-config-files
• We need to ensure that the referenced guides are up-to-date with the new approach in general