Update merge

Fixes File manager freezing on absent or empty SD

Bigger cursor tick on spectrum waterfall

Added interactive titlebar

I changed width in pixels of the "fine-tune cursor" from 2 to 5 , and then re-centered the cursor, from 120 to 118 to accomodate the shift in width.

I was inspired by this old ISSUE on Havoc's repository, where at the end @furrtek commented the need to make the red tick bigger in the future (but forgot / was swamped with other ehnancements / issues):

https://github.com/furrtek/portapack-havoc/issues/172

Fix MicTX gain when using decimal values

tiny detail

Fix draw bearing

Fixed bug in datetime

As shown in https://github.com/eried/portapack-mayhem/issues/88 ...

Tiny bug but probably responsible for badly forming datetime in several apps, as it is used in ACARS, POCSAG and ADSB_TX (and of course AIS RX)