Support windows tested in git bash

[JohT]

🚀 Features

• Support Windows using git bash: The scripts can now also be used on Windows using the git bash provided by Git for Windows. Other POSIX shell emulations might also work but weren't tested.
• Support executing Jupyter Notebooks on Windows: The automated execution of Jupyter Notebooks and converting their results to Markdown and PDF is now also supported on Windows.
• Support graph visualizations on Windows: The automated execution of JavaScript Graph visualizations and saving them as images is now also supported on Windows.

⚙️ Optimization

• Introduce functions to check and wait for Neo4j: There is now one common shell script file that provides functions to check and wait for Neo4j. Polling for a running status using the neo4j status CLI command was removed in favor of simply waiting for the HTTP port to be available, which is the most reliable way to check if Neo4j is actually running. Besides that, neo4j status doesn't work on Windows when Neo4j is started in a console instead of as a service.
• Add info about conda environment in pipeline: An additional pipeline step prints out details about the Conda environment that is used for the Jupyter Notebooks.
• Move conda environment activation to own script: The automated execution and conversion of Jupyter Notebooks is now separated from the creation and activation of the Conda environment. This leads now to two scripts with a clear separation of concern and reason to change. It makes them also easier to read because they are smaller and simpler.

📦 Updates

• Migrate to jq v1.7: The update of jq from version 1.6 to 1.7 comes with a stricter validation for nested objects in columns: These need to be flattened or converted to strings before they can be converted to CSV. That's why mapView is no longer contained in the result of graph algorithm estimations. The same information is anyway contained in treeView. Additionally, lists of lists need to be flattened ideally within the Cypher query before they can be converted to CSV.

🛠 Fixes

• Minor typo and other fixes