[css-conditional-5] Update references and resolution to add scroll-state() to explainer (w3c#10707)

* [css-conditional-6] Move scroll-state() explainer

Also fix some references from css-contain to css-conditional

* Don't move, but fix references.

---------

Co-authored-by: Rune Lillesveen <futhark@chromium.org>

Author: lilles

css-conditional-5/scroll_state_explainer.md

@@ -37,9 +37,8 @@ depending on this state (see
 [this comment](https://github.com/w3c/csswg-drafts/issues/5979#issuecomment-899765136)
 and onwards).
 
-There is an [open github issue](https://github.com/w3c/csswg-drafts/issues/6402)
-for state container queries where it was resolved to defer to the next level of
-the spec - presumably css-contain-4.
+There is a [resolution](https://github.com/w3c/csswg-drafts/issues/6402#issuecomment-1812973013)
+to add scroll-state() queries.
 
 ## Container Queries vs Pseudo Classes
 
@@ -169,10 +168,10 @@ This needs further exploration.
 Add a new scroll-state() function to `@container` similar to `style()` where
 `state:value` pairs, and logical combinations of them, can be queried.
 `<state-feature>` will be similar to
-[`<style-feature>`](https://drafts.csswg.org/css-contain-3/#typedef-style-feature)
+[`<style-feature>`](https://drafts.csswg.org/css-conditional-5/#typedef-style-feature)
 in that it takes a state name and value separated by a colon.
 
-Add a new [`container-type`](https://drafts.csswg.org/css-contain-3/#container-type)
+Add a new [`container-type`](https://drafts.csswg.org/css-conditional-5/#container-type)
 for each state which can be combined with size container types:
 
 - `stuck`