Features:
- Nodes have details: description and date
- Nodes always ordered by date
- Today date assigned when creating new node
- Impossible edges and dates highlighted in red
- Tags filter to search nodes in view
- Button to update past dates to today dates
- Earlies dates calculated depending on duration of nodes
- Button to optimize dates to the earliest one
You can test in: https://luismontalba.github.io/grafos/index.html