Add web front-end and fix API issues

node_modules/rxjs/dist/cjs/internal/util/UnsubscriptionError.js

@@ -0,0 +1,15 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.UnsubscriptionError = void 0;
+var createErrorClass_1 = require("./createErrorClass");
+exports.UnsubscriptionError = createErrorClass_1.createErrorClass(function (_super) {
+    return function UnsubscriptionErrorImpl(errors) {
+        _super(this);
+        this.message = errors
+            ? errors.length + " errors occurred during unsubscription:\n" + errors.map(function (err, i) { return i + 1 + ") " + err.toString(); }).join('\n  ')
+            : '';
+        this.name = 'UnsubscriptionError';
+        this.errors = errors;
+    };
+});
+//# sourceMappingURL=UnsubscriptionError.js.map