Improvements and fixes

A report table sums the month's inverter faults into a cost; reports print in six languages, and false outage markers are gone.

• The table lists faults per inverter or per station, with a monthly row on the activity feed.
• Reports can now be generated in six languages: Spanish, French, Italian and Portuguese join English and German.
• The outage summary no longer marks each member's power curve.
• The assistant no longer answers with incoherent text.
• A device's web interface is no longer removed by a missed check.
• A renamed inverter, string or meter now shows its new name in lists and graphs.