Show correct planet image based on planet type

[lanedirt]

TODO: The correct image for the planet needs to be shown in the following locations:

• Galaxy page
• Planet list in right sidebar
• Planet abandon/rename popup (button on overview page)
• Empire page (does not exist yet)
• Note: PR Update image with all planet type and laste ogame picture #194 added more images which resulted in some duplicates. Check which version is the best to use and delete any duplicates.

---

A planet is always one of these types:

1. dry
2. desert
3. normal
4. jungle
5. water
6. ice
7. gas

See PlanetService::getPlanetType() for how the planet type is determined.

The [planet type] + [planet position in galaxy:system] makes up the unique "image". E.g. planet 1:1:15 with type "dry" would be "dry_15".

Images are stored in /public/img/planets. Note: not all images have been added to this folder yet. Any missing images will need to be retrieved and stored in the correct folder.

[Chewbaka69]

matching system of ogame to display planet by type: