СПО АСРВ_4.4.55.43
fix:
1. Fixed an issue where selecting "Low" brightness in the PX device did not take effect

feat:
1. Added "Picture Map" to Mapping mode

refactor:
1. Optimized the operation logic of the "Map" sidebar feature in Mapping mode
2. Optimized the update strategy for auto-marking in Mapping mode
3. Optimized the setting strategy for the GNSS source feature

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API and Firmware (API 0.55.84, FPGA 0.55.103, MCU 0.55.99, PMU 1.11, AGU 1.5, EIO 1.25)
No updates for other firmware (BUS 0.55.8)

feat:
1. Added timed AGC function
2. Added EIO GNSS data source

fix:
1. Fixed an issue where RBW calculation was incorrect when using RBW = 0.01 * SPAN in SWP mode
2. Fixed an issue where the upper and lower limits of symbol rate and sampling rate were incorrectly calculated in digital demodulation mode
