[stable24] Text in Collectives broken with latest stable24

[mejo-]

Describe the bug

Since #1296, the Collectives app no longer works on latest stable24. When trying to open the Text app, I get the following JS error:

TypeError: n is not an object or null
    VueJS 29
    b ViewerComponent.vue:1
    VueJS 24
vue.runtime.esm.js:2976:37

To Reproduce
Steps to reproduce the behavior:

1. Setup Nextcloud with latest stable24 branches (after [stable24] Merge pull request #1273 from nextcloud/enh/open_with #1296)
2. Enable Collectives app
3. Create a new collective and try to open a page in edit mode
4. See error

[mejo-]

Backporting #1281 fixes the issue for me.

@Raudius @luka-nextcloud @juliushaertl

[juliusknorr]

Fixed with #1308