deps(npm): bump @angular/platform-browser from 21.2.1 to 21.2.11 in /ui

[dependabot]

Bumps @angular/platform-browser from 21.2.1 to 21.2.11.

Release notes

Sourced from @​angular/platform-browser's releases.

21.2.11

common

Commit	Description
	prevent focus from scrollToAnchor

compiler

Commit	Description
	let declaration span not including end character

core

Commit	Description
	fix ordering of view queries metadata in JIT mode
	guard against non-object events and avoid listener wrapper identity mismatch
	prevent event replay double-invocation when element hydrates before app stability

platform-server

Commit	Description
	ensure origin has a trailing slash when parsing url

21.2.10

docs

Commit	Description
	link formatting in "Animating your Application with CSS"

migrations

Commit	Description
	fix NgClass leaving trailing comma after removal

router

Commit	Description
	restore internal URL on popstate when browserUrl is used

21.2.9

core

Commit	Description
	escape forward slashes in transfer state to prevent crawler indexing

http

Commit	Description
	add CSP nonce support to JsonpClientBackend
	Don't on Passthru outside of reactive context

platform-server

Commit	Description
	prevent SSRF bypasses via protocol-relative and backslash URLs

router

| Commit | Description |

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Changelog

Sourced from @​angular/platform-browser's changelog.

Commits

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[dependabot]

Looks like @angular/platform-browser is up-to-date now, so this is no longer needed.