Harmonize focus-visible styles for vue-navigation item with none-vue navigation item

[JuliaKirschenheuter]

☑️ Resolves

• For [BITV]: change styles for focused items in sidebar nextcloud/server#41699

Before
Vue-navigation

Unchanged non-vue navigation

After
Vue-navigation

Vue-navigation	Unchanged non-vue navigation

🏁 Checklist

• ⛑️ Tests are included or are not applicable
• 📘 Component documentation has been extended, updated or is not applicable

[emoral435]

Tested on my local dev env - LGTM :) really nice change, good for a11y

[emoral435]

Actually, I found something that looks broken - this is for the subitems beneath the shared files section here:

the border-radius may have to be increased, or due to the shift padding/margin on the submenu files in shared (and also probably the favorites section...) this has to be changed before it gets merged :) sorry to be so nitpicky ;(

[JuliaKirschenheuter]

Actually, I found something that looks broken - this is for the subitems beneath the shared files section here: the border-radius may have to be increased, or due to the shift padding/margin on the submenu files in shared (and also probably the favorites section...) this has to be changed before it gets merged :) sorry to be so nitpicky ;(

Yeah, I've seen it too. But it is actually another issue (which is not relevant for a11y) and is present on master:

[emoral435]

Yeah, I've seen it too. But it is actually another issue (which is not relevant for a11y) and is present on master:
I see then. this is all good to me then!