Theming enhancements

• provide current elevation value as css variable
• auto-shade background depending on current elevation (darken in as Sun goes down)
• make event line color inherit primary-color by default

fixes #14

Fix release

• update dependencies to newest versions
• fixed #23 and #24

Final fix for moon sensor, I believe

• Fixed #18

Another fix

Fixed #17
Add some guard checks to tackle with moon sensor issues.

Fixes

• Fixed #15 and #16
• Add possibility to style moon color (override --sc-moon-color css variable)

Major rewrite

• allows entities to be specified for required data (refer to README for details)
• logs card version to the console

Cleanups

Fixed localization bug #13
Development hot-reload

Moon phase

Adds depiction of moon phase.

Header-less

1. Allow header-less card: simply clear the name in configuration
2. Reduce file size

Release 3.1

• add possibility to override clock format
• allow to change sun size in themes
• fixed #7