feat: creats frontend for the project

frontend/src/api/import.ts

@@ -0,0 +1,8 @@
+import type { ImportStatementResponse } from '@family-budget/shared';
+import { api } from './client';
+
+export async function importStatement(
+  file: unknown,
+): Promise<ImportStatementResponse> {
+  return api.post<ImportStatementResponse>('/api/import/statement', file);
+}