Gutenberg: Resolve some duplicate dependencies

[blowery]

We have some package level dupes do to version pinning:

WARNING in clipboard
  Multiple versions of clipboard found:
    1.7.1 ./~/@wordpress/components/~/clipboard
    2.0.1 ./~/clipboard

WARNING in jquery
  Multiple versions of jquery found:
    1.12.3 ./~/jquery
    3.3.1 ./~/@wordpress/editor/~/jquery

WARNING in moment-timezone
  Multiple versions of moment-timezone found:
    0.5.11 ./~/i18n-calypso/~/moment-timezone
    0.5.21 ./~/moment-timezone

WARNING in react-click-outside
  Multiple versions of react-click-outside found:
    2.3.1 ./~/@wordpress/components/~/react-click-outside
    3.0.1 ./~/react-click-outside

To resolve

• clipboard
• jquery (Gutenberg: update packages to latest versions #27778)
• moment-timezone (Update dependency i18n-calypso to v3 #27823)
• react-click-outside

[blowery]

#27823 addresses the moment-timezone dupe

[blowery]

jquery I think we're just leaving alone since we already extern jQuery@1.12 and bundle jQuery@3. #27778 dealt with it.

[blowery]

WordPress/gutenberg#10748 and WordPress/gutenberg#10739 filed with Gutenberg to get them up to a range that matches us (and on current versions)

[blowery]

All dupes from gutenberg are now deduped.