Add presentMut lens for always replacing the current history item instead of appending

[laszlokorte]

Currently the latest history entry is only replaced if the modification happens inside the globally configured time window.

This PR adds a new H.presentMut lens that always replaces the latest history entry instead of append to the log.

This is useful for temporarily opting out of tracking changes. For example when updating a value based on the mouse position but only storing a new history value once the mouse button is released.

Not sure if is repository is still maintained but I would appreciate if this PR could be merged.

[polytypic]

Thanks for the PR!

Hmm... The basic idea and use case sounds reasonable.

I added a few suggested changes.

Mentioning the addition in the README would also be nice.

Not sure if is repository is still maintained

It has been a long time since I last worked on a frontend project (especially using Calmm-js) and I have kind of assumed everyone has already moved on to writing TS using LLM generated code.

[laszlokorte]

Wow, thanks for your fast response. I agree with your suggestions and applied them.

I did not commit the regenerated docs and dist folder. Should this be done as part of the PR as well?

[laszlokorte]

It has been a long time since I last worked on a frontend project (especially using Calmm-js) and I have kind of assumed everyone has already moved on to writing TS using LLM generated code.

I am currently working on a frontend project again and remebered your talks on calmmjs and discussion from back in 2016 in the CycleJS chat and at CycleConf. So I thought to give it a try to apply the calmmjs architecture to svelte. So far it works really nice.

[laszlokorte]

Would this be ready to be merged or anything still to be done?