[Feature Request] Built-in, English-like handling of Dates

It would be wonderful if Hyperscript could abstract away the complexity that is dealing with **dates** in Javascript. I would love to be able to do:

```
set startDate to 2025-01-29
set finishDate to (startDate + 7 days)
```

In order to be able to handle all kinds of date calculations, we'd need to have words like:
- `today`
- `year`, `month`, `day`, `hour` and `minutes`

That way we'd be able to do:

```
if the month of birthDate is the month of today then
if the day of birthDate is the day of today then
send birthdayGreetings to #welcomeMsg
end
end
```

And the complexity of dealing with localised date and time calculations could be abstracted by introducing the keyword `local`, like this:

```
set startDate to local today
```