Merge remote-tracking branch 'origin/config_sa_mode' into integration_2024_w45 (!3024)

Set SA mode as default

- Set standalone (SA) mode as the default.
- Adjust commands in Docker Compose files by removing --sa flags and
  adding --nsa flags where applicable.
- Add a function to verify that only one mode is being used at a time.
- Update all relevant documentation.

docker/README.md

@@ -243,7 +243,7 @@ services:
           core: -1 # for core dumps
         environment:
             USE_B2XX: 'yes'
-            USE_ADDITIONAL_OPTIONS: --sa --RUs.[0].sdr_addrs serial=30C51D4 --telnetsrv --telnetsrv.shrmod ci --continuous-tx --log_config.global_log_options level,nocolor,time,line_num,function
+            USE_ADDITIONAL_OPTIONS: --RUs.[0].sdr_addrs serial=30C51D4 --telnetsrv --telnetsrv.shrmod ci --continuous-tx --log_config.global_log_options level,nocolor,time,line_num,function
         devices:
             - /dev/bus/usb/:/dev/bus/usb/
         volumes: