addon-toolbars: add support for keyboard shortcuts/navigation

[kaelig]

Is your feature request related to a problem? Please describe
I'd like to be able to switch easily between, say, dark and light mode in a Story (or cycle through multiple themes).

Describe the solution you'd like
Not sure how this could work in practice, curious if anyone has ideas on how to make that work.

Are you able to assist to bring the feature to reality?
Probably not, sorry!

[frassinier]

What do you mean @kaelig? Be able to assign key shortcuts when you register an addon?

[kaelig]

I suppose that was just made possible via #14658?

(related: #14401)

[frassinier]

@Dschungelabenteuer can you relate? 😊

[Dschungelabenteuer]

Yes, as of #14658 this should not be a problem using the extended shortcut API :) I can create a pull request if you guys want, but we should first agree on the different shortcuts (especially regarding cross-OS compatibility) since @kaelig pointed out an unforseen issue in the original PR 😅 I should actually get myself a macOS-powered environment!

[shilman]

Jeepers creepers!! I just released https://github.com/storybookjs/storybook/releases/tag/v6.3.0-beta.18 containing PR #15169 that references this issue. Upgrade today to the @next NPM tag to try it out!

npx sb upgrade --prerelease

Closing this issue. Please re-open if you think there's still more to do.