String "recently-edited" shown in app instead of l10n or "Edited xx time ago"

### ⚠️ Before posting ⚠️

- [x] This is a **bug**, not a question or an enhancement.
- [x] I've [searched for similar issues](https://github.com/nextcloud/android/issues) and didn't find a duplicate.
- [x] I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Steps to reproduce

1. Set language to Swedish (probably just not English)
2. Open android app that is connected to a instance that has the recommendations app active
3. Observe the recommended files

### Expected behaviour

It should say a time/date/time since, and it should be a l10n string. NC 32 in general has deprecated "Recently edited" in favour of "Last edited x time ago".

### Actual behaviour

Under the filename there is the text "recently-edited" (exactly as written).


This string does not exist in Transifex, neither as source or translated string. The only place I find this string in the entire Nextcloud org git is here:
[src/components/RecommendedFile.vue](https://github.com/nextcloud/recommendations/blob/479524ddabc6e35e9a002eb1c31c205ebfe1e3fd/src/components/RecommendedFile.vue#L116)
[lib/Service/RecentlyEditedFilesSource.php](https://github.com/nextcloud/recommendations/blob/479524ddabc6e35e9a002eb1c31c205ebfe1e3fd/lib/Service/RecentlyEditedFilesSource.php#L21)

[(How I searched)](https://github.com/search?q=org%3Anextcloud%20recently-edited&type=code)

### Android version

15

### Device brand and model

Sony Xperia 1III

### Stock or custom OS?

Custom: LineageOS 22.2

### Nextcloud android app version

3.34.0

### Nextcloud server version

32.0.0

### Using a reverse proxy?

Yes

### Additional information

Initially reported as https://github.com/nextcloud/recommendations/issues/926, as the string only exists there.