Update documentation on debugging apps

The [current wiki page](https://github.com/Azure/azure-functions-core-tools/wiki/Enable-Debugging-for-language-workers) has sections that are limited and/or outdated, and it is linked from an official doc describing the `--language-worker` property [here](https://learn.microsoft.com/en-us/azure/azure-functions/functions-core-tools-reference?tabs=v2#func-start).

Users should use the official docs for local development such as [this](https://learn.microsoft.com/en-us/azure/azure-functions/functions-develop-local?pivots=programming-language-csharp) instead.

Removal of the wiki page may require scoping out how many users use this method first. If documentation is removed, there should be a discussion about deprecating `--language-worker` since this wiki page appears to be the only written description of its function and usage.

Start with the linked wiki page and the official local-development and Core Tools reference pages, especially the func start entry point and --language-worker property. Determine how widely this debugging method is used and whether the wiki should be removed; document the decision and any discussion needed about deprecating --language-worker.

Written by the indexing model from the issue text.