v0.3.0

Enhancements:

• #5 The refresh button can be shows by adding the correct config, but unfortunately the service isn't called when pressing the button. When this issue is solved, the rest of the interactions should be simple
• #6 Images stored as base64. Issue can be closed when v03.0 is made the latest release.
• #7 Keeping the README up to date is a continuous process but it is sufficient for use and HACS.
• #8 PR for adding to HACS is pending, but the card can be added as a custom repository.
• #9 There are now 3 ways of showing grid status. The LuxPower integration will still require fine tuning.
• #18 Added label to show when last the values were updated, and also how long ago that was (if the entity has a timestamp attribute)

Bugfixes

• #1 Improved formatting and scaling but text is not at a point where I am satisfied with.