chore: disable tslint rule for vendor-platform.ios.ts (#250)

Author: Vasil Chimev

Diff for: app/vendor-platform.ios.ts

@@ -1,3 +1,4 @@
 // There is a bug in angular: https://github.com/angular/angular-cli/pull/8589/files
 // Legendary stuff, its webpack plugin pretty much doesn't work with empty TypeScript files in v1.8.3
+/* tslint:disable:no-unused-expression */
 void 0;