Minor bug fixes and performance improvements.

Fix issue with default currency selection not working.

New

• All new and improved Firmware and Hardware trackers, find out more information than you ever wanted to know about your Wall Connector.
• Now even easier to find all firmware downloads
• Add the option to pick your own currency symbol (this does not affect energy cost calculations).

Fixed

• Fixed minor bugs when using the app when directly connected to your Wall Connector.
• Added/updated fault codes.
• Minor bug fixes and performance improvements