fix: use route in middleware

[N-Feist]

Why:

Closes: [AB#143662]

Describe your changes

Checklist before requesting a review

• My code follows the code style of this project.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I've updated docs/changelog/changelog_en.md and docs/changelog/changelog_de.md. If I'm a non-German speaker, I've still updated the file with the English version as a placeholder.

[csandru-plenty]

Could you also remove this line please, from TextContent.vue (triggers a console warning while yarn setup:unix & yarn dev):

import { defineProps, computed } from 'vue';