change version overview to compact

[jakoch]

The version overview is currently a long list with a lot of noise (several mentions of "version").

• Compact the display to something like:

# cpp-devbox 1.0.4 (2024-07-04)

Name:  Debian 12 Bookworm with Vulkan-SDK
Image: ghcr.io/jakoch/cpp-devbox:bookworm-with-vulkansdk-latest

## Version Overview

GCC         12.2.0, 13.2.0
Clang       17.0.6
Vulkan-SDK  1.3.283.0
Ninja       1.11.1
cmake       3.30.0
ccache      4.10.1
vcpkg       2024-06-10-02590c43
Mold        2.32.1
ldd         2.36
lldb        17.0.6
valgrind    3.19.0
cppcheck    2.10
git         2.39.2

• place a versions.md file into the devbox
• find out, if its possible to push this file as an artifact to Github
  • run script inside container and use output mapping?
    • docker run --rm -v $(pwd)/output:/output show-tool-versions.sh

[jakoch]

Transition from using README.md files for version tracking
to a dynamically updated website that displays release tags, their images, and the versions.

• Convert version information from Markdown to JSON format.
• Create and push a static index.html to the gh-pages branch.
• Implement JavaScript to load and display data from versions.json.
  • Ensure versions.json lists the filenames of the JSON files with version data.
• Update versions.json post-image build to include the new tag-specific JSON file.
  • Ensure each tag-specific JSON file (e.g., version-tag.json) includes repository version tags, image tags, and version data.