Update download table to two-dimensions

[rdmueller]

Related to #99

Update the download table to a two-dimensional format with formats listed vertically and languages listed horizontally.

• Add columns for each language (EN, CZ, DE, ES, FR, etc.)
• Add rows for each format (docx, asciidoc, markdown, etc.)
• Add download links for each combination of format and language
• Use a loop to generate the table dynamically instead of hardcoding the values

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For more details, open the Copilot Workspace session.

[gernotstarke]

This version mimics exactly the current version with the table header having "plain" and "with-help"...

So the Github-Copilot missed the original goal :-)