Tooltip: Improve the accessibility of the composer and the rich text editor (#12459)

* Use `AccessibleButton` in `RovingAccessibleTooltipButton`

* Update snapshots

* Update @vector-im/compound-web

* Update composer

* Update formating buttons

* Update snapshots

* Remove placement

* Update snapshots

* Use kbd

* Update ``@vector-im/compound-web`

package.json

@@ -76,7 +76,7 @@
         "@sentry/browser": "^7.0.0",
         "@testing-library/react-hooks": "^8.0.1",
         "@vector-im/compound-design-tokens": "^1.2.0",
-        "@vector-im/compound-web": "^4.1.2",
+        "@vector-im/compound-web": "^4.2.0",
         "@zxcvbn-ts/core": "^3.0.4",
         "@zxcvbn-ts/language-common": "^3.0.4",
         "@zxcvbn-ts/language-en": "^3.0.2",