feat: check for available updates

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

@@ -37,6 +37,8 @@ export function BrowseExecutable():Promise<string>;
 
 export function BulkUpdateQSL(arg1:Array<number>,arg2:main.QSLBulkUpdate):Promise<number>;
 
+export function CheckForUpdate():Promise<main.UpdateInfo>;
+
 export function ClearLookupCache():Promise<void>;
 
 export function ClusterSpotStatuses(arg1:Array<main.SpotQuery>):Promise<Array<main.SpotStatus>>;

frontend/wailsjs/go/main/App.js

@@ -46,6 +46,10 @@ export function BulkUpdateQSL(arg1, arg2) {
   return window['go']['main']['App']['BulkUpdateQSL'](arg1, arg2);
 }
 
+export function CheckForUpdate() {
+  return window['go']['main']['App']['CheckForUpdate']();
+}
+
 export function ClearLookupCache() {
   return window['go']['main']['App']['ClearLookupCache']();
 }

frontend/wailsjs/go/models.ts

@@ -1591,6 +1591,24 @@ export namespace main {
 	        this.moving = source["moving"];
 	    }
 	}
+	export class UpdateInfo {
+	    current: string;
+	    latest: string;
+	    available: boolean;
+	    url: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new UpdateInfo(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.current = source["current"];
+	        this.latest = source["latest"];
+	        this.available = source["available"];
+	        this.url = source["url"];
+	    }
+	}
 	export class WKMacro {
 	    label: string;
 	    text: string;