Remove focus-visible polyfill (#11677)

* Remove focus-visible polyfill

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Update snapshots

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

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Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/structures/MatrixChat.tsx

@@ -35,8 +35,6 @@ import { CryptoEvent } from "matrix-js-sdk/src/crypto";
 import { DecryptionError } from "matrix-js-sdk/src/crypto/algorithms";
 import { IKeyBackupInfo } from "matrix-js-sdk/src/crypto/keybackup";
 
-// focus-visible is a Polyfill for the :focus-visible CSS pseudo-attribute used by various components
-import "focus-visible";
 // what-input helps improve keyboard accessibility
 import "what-input";