Minor German translation error in File Select

- [x] I have checked checked the known issues and searched Github to ensure this issue has not already been reported.

### Description of the inaccuracy:
In File Select a summary of the collected amount of Jiggys and Notes is shown for every save file. In German the correct plural form of "NOTE" is "NOTE**N**". In Lighthouse the word is incorrectly displayed as "NOTE**S**".

### Screenshots or videos of Lighthouse's behavior:

### Screenshots or videos of the original hardware's behavior:
Sourced from Project64 for convenience, however behaves the same on original hardware:

### System Information:
- OS: Win 10
- GFX Backend: DirectX
- Game Version: 1.1.0
- Rom Version: PAL

Locate the German File Select translation for the plural label currently shown as "NOTES". Update it to the correct "NOTEN" wording and verify that the summary for save files displays the corrected German plural.

Written by the indexing model from the issue text.