Improvements and fixes

Strings without their own measurement get orientation and tilt, the five-day forecast stops jumping, and two device connection problems resolve themselves.

• Strings without their own measurement are analysed from their inverter's power, so orientation and tilt are detected on plants that measure only inverters.
• The five-day forecast applies one performance ratio across all its days, so expected energy no longer jumps from one forecast day to the next.
• A Huawei data logger that could not be reached when the on-site agent started now finds its inverters within five minutes, without a restart.
• A device that rejects extra connection information now opens its web interface through the proxy.
• Security updates for third-party components.