fix(deps): move webextension-polyfill to peerDeps + devDeps

[legobeat]

The webextension-polyfill package is only used once for a type-import and assumed in environment. This makes it a peerDependency and a devDependency instead of a dependency. A benefit of this is that users can start using new version without us having to release explicit support for every version bump, besides from being more correct.

peerDependencies version is aligning with already used transitive via extension-port-stream.

This also upgrades the used version from webextension-polyfill@0.10.0 to webextension-polyfill@0.12.0.

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Related

• https://github.com/MetaMask/extension-port-stream/pull/54

[socket-security[bot]]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/webextension-polyfill@0.12.0	None	0	205 kB	addons-robot

🚮 Removed packages: npm/webextension-polyfill@0.10.0

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