Adding FUJITSU as vendor

[DorianCoding]

Description

I'm wondering if it is possible to add Fujitsu as a vendor, I tried a background but it can be changed. I tried to follow the guidelines but I could not get a preview neither the photoshop template but I can share a SVG.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• [x] New feature (non-breaking change which adds functionality)

Checklist:

• [x] My code follows the style guidelines of this project (correct file and folder structure)
• [x] The background image for theme follows naming convention: theme_name.png
• [x] I updated themes.json file (JSON database)

Thanks.

[DorianCoding]

It's done.

[AdisonCavani]

Thank you for contributing