[lldb-dap][NFC] Format typescript files (#173862)

This patch was generated by following commands:
1. `npm install --save-dev prettier-plugin-organize-imports`
2. `npm run format`
3. `npm audit fix`

It partially addresses
[issue](https://github.com/llvm/llvm-project/issues/151598) and improves
quality of ts code (formatting and unused imports).

GitOrigin-RevId: d382b7ff6b0f26354bd86fc9f772bfe81de83028
14 files changed