Move docs to quarto for v1

[JoostBuitink]

Issue addressed

Fixes #224

Explanation

Moved all current docs to quarto format

Docs can be viewed via this link: https://deltares.github.io/Wflow.jl/quarto/

Additional Notes (optional)

Some items are still missing/need to be picked up

• Many internal links to other pages are not yet working
• The version switcher needs to be updated (check Delft-FIAT repo)
• Examples are missing, but can be added in the future

[JoostBuitink]

Please ignore all changes in the src/ directory (I need to fix this still). These are inherited from (mainly) the recent water-demand updates. I included those to ensure all docs we aligned with the master branch when moving to quarto

[alimeshgi]

Well done! Great work!