Fix rtl_433 bias-t flag and add TSCM enhancements

- Fix bias-t option in rtl_433 for RTL-SDR and HackRF:
  - rtl_433's -T flag is for timeout, not bias-t
  - RTL-SDR: Use :biast=1 suffix on device string
  - HackRF: Use bias_t=1 in SoapySDR device string
- Add "Listen (FM/AM)" buttons to TSCM RF signal details
  - Switches to Listening Post mode and tunes to frequency
- Fix device detail header padding to prevent protocol badge
  overlapping with close button

utils/sdr/hackrf.py

@@ -134,8 +134,14 @@ class HackRFCommandBuilder(CommandBuilder):
         Build rtl_433 command with SoapySDR support for ISM band decoding.
 
         rtl_433 has native SoapySDR support via -d flag.
+
+        Note: rtl_433's -T flag is for timeout, NOT bias-t.
+        For SoapySDR devices, bias-t is passed as a device setting.
         """
+        # Build device string with optional bias-t setting
         device_str = self._build_device_string(device)
+        if bias_t:
+            device_str = f'{device_str},bias_t=1'
 
         cmd = [
             'rtl_433',
@@ -147,9 +153,6 @@ class HackRFCommandBuilder(CommandBuilder):
         if gain is not None and gain > 0:
             cmd.extend(['-g', str(int(gain))])
 
-        if bias_t:
-            cmd.extend(['-T'])
-
         return cmd
 
     def get_capabilities(self) -> SDRCapabilities: