New sensors and use backup data when real time data not available - v0.1.0

Notable Changes

• Fix 'today generated energy' label @thundo (#29)
• Mix real time data with historical data obtained from ZCS endpoint in order to have a backup when real time data fetch fails
• Expose new sensors about inverter (temperature, DC current/voltage/energy)

Dependencies

• Bump actions/checkout from 4.1.0 to 4.1.1 @dependabot (#26)
• Bump ruff from 0.0.292 to 0.1.3 @dependabot (#28)