Restart with hw button 10s hold - Helps with #1224
Restart Nextion if not connected to ESPHome after 30s - Helps with #1224
Prepare for future support to 921600bps
Still a bit buggy, but this is probably the first working version of an esp-idf upload TFT to be published.
I will work more on this, but wanna have this commit as a reference.