Add web front-end and fix API issues

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

@@ -0,0 +1,15 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.applyMixins = void 0;
+function applyMixins(derivedCtor, baseCtors) {
+    for (var i = 0, len = baseCtors.length; i < len; i++) {
+        var baseCtor = baseCtors[i];
+        var propertyKeys = Object.getOwnPropertyNames(baseCtor.prototype);
+        for (var j = 0, len2 = propertyKeys.length; j < len2; j++) {
+            var name_1 = propertyKeys[j];
+            derivedCtor.prototype[name_1] = baseCtor.prototype[name_1];
+        }
+    }
+}
+exports.applyMixins = applyMixins;
+//# sourceMappingURL=applyMixins.js.map