fixes for loading the app catalog from a user provided config file

package.json

@@ -29,7 +29,7 @@
     "build": "npm run electron:serve-tsc && ng build --base-href ./",
     "build:dev": "npm run build -- -c dev",
     "build:prod": "npm run build -- -c production",
-    "ng:serve": "ng serve -c web -o",
+    "ng:serve": "ng serve ",
     "electron:serve-tsc": "tsc -p tsconfig.serve.json",
     "electron:serve": "wait-on tcp:4200 && npm run electron:serve-tsc && npx electron . --serve",
     "electron:local": "npm run build:prod && npx electron .",

src/app/computesites.service.ts

@@ -193,7 +193,7 @@ export class ComputesitesService {
           if (principal != null) {
               let id = new Identity(principal,cs,certs[i].expiry);
               identities.push(id);
-              if (cs.appCatalogUri != null || cs.appCatalogCmd != null) {
+              if (cs.appCatalogUri !== null || cs.appCatalogCmd !== null || cs.appCatalog !== null) {
                 appidentities.push(id);
               }
               if (cs.dtn != null ) {

src/app/identity.ts

@@ -22,7 +22,12 @@ export class Identity {
     this.systemalerts = new BehaviorSubject<Health[]>(null);
     this.accountalerts = new BehaviorSubject<Health[]>(null);
     this.joblist = new BehaviorSubject<Job[]>([]);
-    this.appCatalog = new BehaviorSubject<Strudelapp[]>(site.appCatalog);
+    if (site !== null) {
+      console.log('creating a site with appCatalog',site.appCatalog);
+      this.appCatalog = new BehaviorSubject<Strudelapp[]>(site.appCatalog);
+    } else {
+      this.appCatalog = new BehaviorSubject<Strudelapp[]>([]);
+    }
     this.quotas = [];
     this.expiry = expiry;