Add the Lisbon Map and Credit Copernicus DEM (#2545)

## Description:

Adds a map based on Lisbon and the surrounding area. Also credits the
ESA's Copernicus Digital Elevation Model, which was used to create this
map and the Gulf of St. Lawrence map.

<img width="1257" height="1257" alt="screenshot of the new Lisbon map"
src="https://github.com/user-attachments/assets/39fa73da-c77d-4d5c-8d00-7ee2794d0298"
/>

## Checklist:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Discord Username:

sehentsin

CREDITS.md

@@ -23,6 +23,11 @@ Pritchard, H.D., Fretwell, P.T., Fremand, A.C. et al. Bedmap3 updated ice bed, s
 [https://doi.org/10.1038/s41597-025-04672-y](https://doi.org/10.1038/s41597-025-04672-y)  
 Licensed under [CC-BY 4.0](https://creativecommons.org/licenses/by/4.0/)
 
+### Copernicus Global Digital Elevation Models
+
+© DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.
+License: (https://docs.sentinel-hub.com/api/latest/static/files/data/dem/resources/license/License-COPDEM-30.pdf)
+
 ## Icons
 
 ### [The Noun Project](https://thenounproject.com/)