feat(icom): the speaker choice appears beside the RX-audio option too

Same remembered preference as the console's speaker button, surfaced where
the stream itself is enabled — tick RX audio and decide in the same breath
whether it reaches the speakers. Applied immediately, no save needed.

frontend/wailsjs/go/main/App.d.ts

@@ -406,6 +406,8 @@ export function GetAntGeniusSettings():Promise<main.AntGeniusSettings>;
 
 export function GetAntGeniusStatus():Promise<antgenius.Status>;
 
+export function GetAudioMonitorPref():Promise<boolean>;
+
 export function GetAudioSettings():Promise<main.AudioSettings>;
 
 export function GetAutostartPrograms():Promise<Array<main.AutostartProgram>>;