Exclude reserved namespaces from possible slugs

[timobrembeck]

Motivation

Some urls are reserved for the linking of the webapp, e.g.

• Global patterns:

  • https://integreat.app/landing
  • https://integreat.app/main-disclaimer
  • https://integreat.app/licenses
  • https://integreat.app/recommend

• Region-specific patterns:

  • https://integreat.app/testumgebung/de/disclaimer
  • https://integreat.app/testumgebung/de/news/local
  • https://integreat.app/testumgebung/de/events
  • https://integreat.app/testumgebung/de/locations
  • https://integreat.app/testumgebung/de/offers
  • https://integreat.app/testumgebung/de/search

Proposed Solution

• We should prevent landing, main-disclaimer, licenses and recommend as slugs for regions
• We should prevent disclaimer, news, events, locations, offers and search as slugs for pages.

(probably it makes sense to put these lists in the settings file)

Alternatives

Additional Context

Design Requirements