* switched AsyncWebServer library
* Ethernet version now uses same AsyncWebServer library as Wifi version
* fix languange of `/history`
* fix RSSI on `/history` #1463
* merge PR #1048 version and hash in API, fixes#1045
* fix: no yield day update if yield day reads `0` after inverter reboot (mostly on evening) #848
* try to fix Wifi override #1047
* added information after NTP sync to WebUI #1040
* added 'improve' functions to set wifi password directly with ESP web tools #1014
* fixed MqTT publish while appling power limit #1013
* slightly improved HMT live view (Voltage & Current)
* fix display of hidden SSID checkbox
* changed yield correction data type to `double`, now decimal places are supported
* corrected name of 0.91" display in settings
* attempt to fix MqTT zero values only if setting is there #980, #957
* made AP password configurable #951
* added option to start without time-sync, eg. for AP-only-mode #951
added part of mac address to MQTT client ID to seperate multiple ESPs in same network
added dictionary for MQTT to reduce heap-fragmentation
removed `last Alarm` from Live view, because it showed always the same alarm - will change in future
reenabled FlashStringHelper because of lacking RAM
complete rewrite of monochrome display class, thx to @dAjaY85 -> displays are now configurable in setup
improved `isAvailable`, checkes all record structs, inverter becomes available more early because version is check first
fix tickers were not set if NTP is not available
disabled annoying `FlashStringHelper` it gives randomly Expeptions during development, feels more stable since then
moved erase button to the bottom in settings, not nice but more functional
split `tx_count` to `tx_cnt` and `retransmits` in `system.html`
fix mqtt retransmit IP address #602
added debug infos for `scheduler` (web -> `/debug` as trigger prints list of tickers to serial console)
added `/` to MQTT topic and Inverter name
trigger for `calcSunrise` is now using local time #515
fix reconnect timeout for WiFi #509
start AP only after boot, not on WiFi connection loss
improved /system `free_heap` value (measured before JSON-tree is built)
improved wifi initial connection - especially if station wifi is not available #509
removed new operators from web.h (reduce dynamic allocation)
improved sun calculation #515, #505
fixed wifi auto reconnect #509
added disable night communication flag to MQTT #505
changed MQTT publish of `available` and `available_text` to sunset #468
included #483 improvements
fix#468 last_success MQTT
fix#468 update available status at sunset
fix#447 reorderd enqueue commands to not have same payload length in a row
added ssd1306 and nokia display to build script
