* SubGhz: MegaCode display changes
* SubGhz: refactoring frequency analyzer
* SubGhz: use one stage detection in frequency analyzer, tune bw, datarate and etc
* SubGhz: tune analyzer threshold
* SubGhz: raise frequency analyzer threshold and rssi sampling config
* SubGhz: fix frequency analyzer, small step frequency analysis
* SubGhz: subghz_frequency_analyzer_worker
* SubGhz: fix SUBGHZ_FREQUENCY_ANALYZER_THRESHOLD
* SubGhz: debug logging in frequency analyzer, increase MAGN_TARGET to max value
* SubGhz: reduce RSSI delay in frequency scanner
* SubGhz: fix delays, remove trace logging from frequency analyzer
* SubGhz: cleanup variable names and add comments
Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>