Replace vue-clipboard2 with Vue3 compatible lib

[cnotv]

Description

Replace current library vue-clipboard2 with alternative, e.g. useClipboard as component.

Context

As identified in the migration report, it is not possible to use the same library for clipboard functionalities.

As defined in #9842 we have 2 components for this and we may take the chance to deal with that as well.

The replacement should affect pretty much 3 places: Vue setup, Jest setup and component.

[nwmac]

Note: Work can be started now, but should be merged after 2.8.0

[richard-cox]

See https://github.com/Inndy/vue-clipboard2. The functionality we need to update revolve around $copyText (CopyCode, CopyToClipboard, CopyToClipboardText, StatusTable) and v-clipboard (couldn't find this). Need to understand if textContent is available without this lib as well

[nwmac]

@eva-vashkevich I think we just use the $copyText function of the library to copy to the clipboard.

I think we can just use https://github.com/lgarron/clipboard-polyfill - we probably could get away with the new navigator.clipboard.writeText API, but the polyfill would ensure we have the widest browser compatibility.

I think it should be a straight-forward swap in - I'd suggest creating a file clipboard.js in utils that exports a copyTextToClipboard function that uses the polyfill to copy to clipboard (or could use the new API directly) and then replace usages of $copyText with calls to that exported function (need to import it into relevant components etc)