Constrain timeline

[timklapdor]

It would be great if in the frontmatter you could define a time frame it sets a hard limit for zooming out.

e.g. if I wanted to constrain the view to just this year it could be

timeframe: 2025-01-01/now

And the maximum zoom would be limited to that range - rather than being infinite as it tends to be at the moment.

Again looking at a multi-year time frame:

timeframe: 2020-01-01/2024-12-31

which would set the maximum zoom out of the time period from the 1st of January 2020 till the 31st of December 2024.