Add Card visual editor. Minor fixes

• Add Card visual editor
• Minor fixes

Add 23:00-24:00 step to graph

• Add 23:00-24:00 step to graph
• Minor fixes

Current Hour + Improve Graph

• Add current hour rectangle to graph.
• Graph now is showed in steps.
• Improve min/max icons in graph

Card refactor, Detail and Info sections and breaking changes

IMPORTANT BREAKING CHANGES IN THIS RELEASE!

• Card refactor to LitElement.
• title and entity_id params are now name and entity respectively.
• Add Detail and Info sections. Minor Fixes. Section selection.
• Move files to dist folder in order to add more files in future releases.

Minor Fixes

• Fix Issue #2: Fijar 5 decimales a mostrar

Initial Stable Release

Initial Stable Release including:

• Compatible with all rates.
• Actual price close-up.
• Graph with the prices of the current day.
• Graph with the prices of the next day when you are available.
• Minimum and maximum of the current and next day.
• Icon indicating the current pricing period (Valley, Peak, Super-Valley).
• Added documentation