feat: Add CalendarSelector component and install new dependencies.

node_modules/rxjs/dist/esm/internal/util/createErrorClass.js

@@ -0,0 +1,11 @@
+export function createErrorClass(createImpl) {
+    const _super = (instance) => {
+        Error.call(instance);
+        instance.stack = new Error().stack;
+    };
+    const ctorFunc = createImpl(_super);
+    ctorFunc.prototype = Object.create(Error.prototype);
+    ctorFunc.prototype.constructor = ctorFunc;
+    return ctorFunc;
+}
+//# sourceMappingURL=createErrorClass.js.map