Improvements and fixes

A plant's production page is rebuilt around the performance ratio. Remote access now reaches several connected sites at once.

• Several connected sites can now be reached through one plant's remote access, with each site's subnets, keys and status managed on the "Peers" tab.
• The production page is rebuilt: performance ratio per source, an inverter table, site specifications, and a day curve with the clear-sky ceiling and expected production.
• Stretches where the plant could not be reached are now filled with the energy the weather model expects, shown as "Expected (no connection)".
• The API now returns a plant's revenue and EEG compensation per month or year through GET /v1/park/{uid}/revenue, with Marktwert, Marktprämie and curtailment per settlement method.
• The dashboard button again opens on the whole selected day, instead of on an empty range.
• A plant's address is saved again when it is changed in the plant's details.