docs: add the missing user-visible changes to the v11 guide

[plum117]

Why

Before the v11 release, I checked each of the 30 changesets on main against the v11 migration guide. 4 user-visible changes were not in the guide.

What

docs/v11-migration.md:

Changeset	PR	Added to
jasmine-expect-extend	#1332	Smaller fixes
android-bidi-warning	#1314	Smaller fixes (with a link to the README section about Android and WebDriver Classic)
hide-after-first-scroll-before-wait	#1315	Smaller fixes
clear-viewport-measurement-error	#1334	Smaller fixes
visual-reporter-npmignore	#1304	Visual reporter

The visual reporter section also says "React Router 8", the same as its changeset. The start of the guide (prerelease) changes in #1338.

Test

Docs only, so there is no changeset. The other 25 changesets were already in the guide.

🤖 Generated with Claude Code

[changeset-bot]

⚠️ No Changeset found

Latest commit: d6c7e95

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[greptile-apps]

Confidence Score: 5/5

[Low impact] This documentation-only PR appears safe to merge.

Summary

Updates docs/v11-migration.md with previously missing release notes.

• The v11 guide names React Router 8 and the removed route type files.
• The guide explains when Jasmine visual matchers use expect.extend().
• The guide explains the warning for Android browser sessions using WebDriver BiDi.
• The guide says hidden elements disappear before the full-page wait.
• The guide explains clear errors for mobile screenshots without a usable viewport.

_{Reviews (1) · Last reviewed commit: "docs: add the missing user-visible chang..." · Reviewed by Greptile}