CloudWatch log format

## Problem

Logs is a lot easier to read in console, but now with strcutrured logging, it should be formatted better in VS Code

## Expected behavior

Be able to format the logs as a structured json, both for native CW logs and for structured logs by Lambda Powertools

Start by locating the CloudWatch log display and formatting entry points in the VS Code extension. Trace how native CloudWatch logs and Lambda Powertools structured logs are currently rendered, then define completion as both formats being readable as structured JSON in VS Code. No specific files or tests are named, so repository exploration is required.

Written by the indexing model from the issue text.