fix: download lotw only for current callsign in case

of mixed logs (tm2q & f4bpo in same log)

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

@@ -501,6 +501,8 @@ export function UpdateQSOsFromCty(arg1:Array<number>):Promise<number>;
 
 export function UpdateQSOsFromQRZ(arg1:Array<number>):Promise<number>;
 
+export function UploadCallsign(arg1:string):Promise<string>;
+
 export function UploadQSOsManual(arg1:string,arg2:Array<number>):Promise<void>;
 
 export function WinkeyerBackspace():Promise<void>;