docs: work around browser bug with input+scrolling (#3209)

thanks for flagging @TodePond! 

### Change Type

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- [ ] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [x] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff

<!-- ❗ Please select a 'Type' label ❗️ -->

- [x] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know

apps/docs/styles/globals.css

@@ -98,7 +98,12 @@
 html {
 	background-color: #000;
 	border-bottom: none;
-	scroll-padding-top: calc(var(--header-height) + var(--header-padding));
+	/*
+	 * XXX: this was hitting a browser bug on Blink: https://issues.chromium.org/issues/40749247
+	 * Typing into the search bar was causing the page to scroll as you typed.
+	 * We don't need this for now anyway since we don't have subheader navigation anymore.
+	 */
+	/* scroll-padding-top: calc(var(--header-height) + var(--header-padding)); */
 }
 
 body {