* implements UI to configure battery discharge limit
* adds support for discharge limit to MQTT battery provider
* add option to hide `issues` section from battery live view (for MQTT battery)
If the string contains control characters for some reason, the browser
will reject the json with the error `bad control character in string
literal`.
This adds a setManufacturer function that validates the string is ASCII
and will cut off the string at the first non-ascii character.
Pylontech: `PYLON` (50 59 4C 4F 4E 20 20 20)
Pytes: `PYTES` (50 59 54 45 53)
Deye: `DY001` (44 59 30 30 31 03 E8 03)
See https://github.com/helgeerbe/OpenDTU-OnBattery/discussions/1226#discussioncomment-10566898
Commit accc70dea0 added the battery SoC to
the live view header. But due to getSoC() returning an int,
the precision was limited.
This changes getSoC() to return float so when a source with higher
precision is available, the respective precision is shown.
* show battery voltage, current, and power in live view header (the "totals")
* show battery current and power in extra card
* use soc and current precision in live view
* BatteryStats: do not knowingly publish invalid data: not all battery
providers know all values the base class manages. make sure to
prevent publishing invalid values.
Co-authored-by: Bernhard Kirchen <schlimmchen@posteo.net>
