Joffrey JAFFEUX 92797109ba

DEV: uses container resize event instead of mutation (#20757) ...

This commit takes advantage of the `ResizeObserver` to know when dates should be re-computed, it works like this:

```
scrollable-div
--  child-enclosing-div with resize observer
---- message 1
---- message 2
---- message x
```

It also switches to bottom/height for date separators sizing, instead of bottom/top, it prevents a bug where setting the top of the first item (at the top) would cause scrollbar to move to top.

<!-- NOTE: All pull requests should have tests (rspec in Ruby, qunit in JavaScript). If your code does not include test coverage, please include an explanation of why it was omitted. -->

2023-03-21 11:30:32 +01:00

..

javascripts

DEV: uses container resize event instead of mutation (#20757)

2023-03-21 11:30:32 +01:00