Some web styles reworked
LED control functions renamed
Captive portal fix - only on ap mode
Separate all update divs to new tab
Fix online update esp32
Add Zigbee buttons: check connection, check firware revision, toggle LED
All Zigbee functions moved to separate file

--- Still in development ---

Add Zigbee fw file update div
Add Zigbee fw file upload
Add online Zigbee fw check
Add IntelHEX fw file check
Fix cutted files while hex save
Add IntelHEX ccfg check inside
Clean debug msg in IntelHEX
Fix close file after IntelHEX
Add IntelHEX  2652R7 and 1352P7 support