Twenty Twenty: Adds aria-controls and aria-expanded attributes to primary menu

[bschneidewind]

On the TwentyTwenty theme, dropdown menus on the primary menu are missing the aria-controls and aria-expanded attributes.

Trac ticket: https://core.trac.wordpress.org/ticket/62916

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[github-actions]

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Props bschneidewind, joedolson, audrasjb.

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[github-actions]

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[audrasjb]

I can confirm the PR addresses the issue.

Before opening the primary menu

After opening the primary menu

[joedolson]

Related ticket was closed because this change is not necessary; closing PR.