Unlisted dependency on @angular/platform-browser

[pauldraper]

Feature Description

There is a dependency on the @angular/platform-browser package, but this dependency is missing from package.json.

https://github.com/angular/components/blob/59002e1649123922df3532f4be78c485a73c5bc1/src/material/button/button.ts

Use Case

This can make package managers not link properly.

[angular-automatic-lock-bot]

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