Docs: document all supported environment variables settings

[saragerion]

Description of the feature request

The library's utilities allow the configuration of settings via env variables or constructor.
It would be helpful to create a documentation section with a table for each utility to describe what variables can be used, and if they overlap with other TS utilities or not (for example: POWERTOOLS_SERVICE_NAME, POWERTOOLS_TRACE_ENABLED, ...)

Problem statement

Developers can figure it out by looking at the source code, but the variables are undocumented.

Summary of the feature

N/A

Code examples

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Benefits for you and the wider AWS community

N/A

Describe alternatives you've considered

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Additional context

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Related issues, RFCs

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[saragerion]

Note: There is already a section with a table in the homepage, with all variables.
I do think that there is still an opportunity to document the behaviour / functionality of the library for each variable in dedicated sessions.

[saragerion]

Example of improvement, for boolean variables, document if: does it accept 0,1? TRUE, FALSE? true, false?

[saragerion]

Closing as this is a duplicate of #724

[github-actions]

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