feat(Boxer): implement Boxer component with autocomplete and server-side support

src/Boxer/index.ts

@@ -0,0 +1,10 @@
+export { Boxer, default } from './Boxer';
+export { BoxerProvider, useBoxerStore } from './Boxer.store';
+export type {
+  BoxerDataSource,
+  BoxerItem,
+  BoxerProps,
+  BoxerRef,
+  BoxerState,
+  BoxerStoreState,
+} from './Boxer.types';