Deprecate nomodule in Bento

[dmanek]

Summary

Currently we publish module and nomodule versions of Bento runtime as well as components. Modern browsers have supported JavaScript modules for some time now. See https://caniuse.com/es6-module. We should decide a date for this deprecation after which we should stop publishing nomodule versions.

Motivation

Deprecating this will reduce effort to publish nomodule versions of Bento runtime and components.

Impact on Existing Users

Users (i.e. page authors) can continue using the module versions which are well supported across modern browsers.

Alternative Implementation

Use the module versions of the Bento runtime and components.

Additional Context

No response

Notifications

/cc @ampproject/wg-approvers

[dmanek]

cc @jridgewell @alanorozco

[stale]

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