fix: ensure element dir properties persist with text changes

[trueadm]

This seems like a Chromium based issue, but other way, we can ensure that the UI bidi direction is kept up-to-date by applying the dir attribute again on updates. Fixes #12193.

Pretty hard to test this one unless we use screenshot tests with Playwright.

[changeset-bot]

🦋 Changeset detected

Latest commit: 3d8e9cd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
svelte	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[dummdidumm]

This code looks like it does nothing so we definitely need to comment in the code why we do it.
Honestly infuriating that we need to resort to such a "set the attribute to its same value" hack.

[trueadm]

This code looks like it does nothing so we definitely need to comment in the code why we do it. Honestly infuriating that we need to resort to such a "set the attribute to its same value" hack.

It's been like this for ages. Lexical applies the same hack to work around it too, and I think so does ProseMirror. I also literally added a comment just before you commented :D