Merged PR 130579: Update playground code snippets in Playground v1 to migrate from then-catch to async-await

**Items completed in this PR**
1. Then-catch has been migrated to async-await for code_samples file from v2-demo folder for Playground v1

_All the functions of this file are tested after the async-await change_

Related work items: #469707, #470909, #471453, #473946

Author: parth-007