RC 34.1.0-01: Duplicated wording in creation menu — "New" prefix + creator name produces "New New document" ("Neu Neues Dokument")

### ⚠️ 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. Nextcloud 34.0.1 server with an ONLYOFFICE-based connector (reproduced with EuroOffice connector 11.0.1 and official ONLYOFFICE connector 10.1.2).
2. Android app RC 34.1.0-01, German locale.
3. Files view → tap "+" ("Hinzufügen zu Nextcloud").

### Expected behaviour

Either use the server-provided label as-is ("Neues Dokument"), or apply the prefix only to bare type names ("Textdokument" → "Neu: Textdokument"). A separator ("Neu: …") would also avoid the duplication gracefully for languages where the label already contains "New".

### Actual behaviour

Menu entries read (German):

- "Neu Neues Dokument"
- "Neu Neue Tabelle"
- "Neu Neue Präsentation"
- "Neu Textdokument"
- "Neu Whiteboard"

The connector's template-type labels are already full names ("Neues Dokument" = "New document"), and the app prepends its own "Neu"/"New" prefix, resulting in "New New document".

### Android version

16

### Device brand and model

Samsung Galaxy S25+

### Stock or custom OS?

Stock

### Nextcloud android app version

34.0.1

### Nextcloud server version

34.0.1

### Using a reverse proxy?

Yes

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

## Code pointer

The duplication comes from `OCFileListBottomSheetDialog.kt`, where the button label for Direct Editing creators is built as:

```kotlin
val buttonText = String.format(
fileActivity.getString(R.string.editor_placeholder),
fileActivity.getString(R.string.create_new),
creator.name
)
```

`create_new` ("New"/"Neu") is prepended to the server-provided `creator.name`, which for the ONLYOFFICE-based connectors is already a full phrase ("Neues Dokument" = "New document") — producing "Neu Neues Dokument" / "New New document". (Unchanged between stable-34.0.1 and rc-34.1.0-01; the RC's rework of `checkTemplateVisibility()` correctly hides the previously broken static template entries, thanks for that.)

- Connectors: EuroOffice 11.0.1 / ONLYOFFICE 10.1.2 — wording issue identical with both
- Locale: de_DE / de_AT

Happy to provide screenshots of both stable and RC menus.

A pull request with a proposed fix follows.

Start in OCFileListBottomSheetDialog.kt at the Direct Editing creator buttonText construction, then inspect the related create_new and editor_placeholder strings. Reproduce the Files view menu with the ONLYOFFICE-based connector in German and confirm the resulting labels no longer duplicate the server-provided creator name, while bare type names still receive the intended prefix.

Written by the indexing model from the issue text.