docs: fix typos and improve testing documentation

[germa89]

• Fix multiple typos in MAPDL documentation (madpl -> mapdl)
• Improve testing documentation with environment variables table
• Add DMP and SMP terms to dictionary
• Minor code comment fixes

Description

Please provide a brief description of the changes made in this pull request.

Issue linked

Instead of #4186

Checklist

• I have visited and read Develop PyMAPDL.
• I have tested my changes locally
• I have added necessary documentation or updated existing documentation.
• I have followed the PyMAPDL coding style guidelines.
• I have added appropriate unit tests that also ensure the minimal coverage criteria.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have marked this PR as draft if it is not ready to be reviewed yet.
• I have made sure that the title of my PR follows Commit naming conventions (e.g. feat: adding new MAPDL command)

[Copilot]

Pull Request Overview

This PR corrects multiple typos where "MADPL" was incorrectly used instead of "MAPDL" throughout the documentation and code comments. It also enhances the testing documentation by reorganizing content, adding a comprehensive environment variables table, and including DMP and SMP terms in the accepted vocabulary list.

Key changes:

• Fixed typo "MADPL" → "MAPDL" across 7 files (documentation and code comments)
• Restructured testing documentation with improved organization and a detailed environment variables reference table
• Added DMP and SMP to the accepted vocabulary list

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/ansys/mapdl/core/mapdl_extended.py	Corrected typo in docstring from MADPL to MAPDL
src/ansys/mapdl/core/database/database.py	Corrected typo in docstring from MADPL to MAPDL
doc/styles/config/vocabularies/ANSYS/accept.txt	Added DMP and SMP terms to accepted vocabulary
doc/source/user_guide/troubleshoot.rst	Fixed typos in troubleshooting documentation
doc/source/getting_started/macos.rst	Corrected reference label typos
doc/source/getting_started/launcher.rst	Corrected reference label typos
doc/source/getting_started/docker.rst	Corrected reference label typo
doc/source/getting_started/develop_pymapdl.rst	Reorganized testing documentation and added environment variables table

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.36%. Comparing base (0a510cf) to head (0e3bc7f).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4273      +/-   ##
==========================================
+ Coverage   91.05%   91.36%   +0.30%     
==========================================
  Files         193      193              
  Lines       15720    15720              
==========================================
+ Hits        14314    14362      +48     
+ Misses       1406     1358      -48     

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[germa89]

@pyansys-ci-bot LGTM.

[pyansys-ci-bot]

✅ Approving this PR because germa89 said so in here 😬