[BITV]: Replace custom tooltips with native one for Users page

[JuliaKirschenheuter]

Problem

To show a tooltip on a several components we currently use v-tooltip. An example can be found in https://github.com/nextcloud/server/blob/master/apps/settings/src/components/UserList/UserRow.vue#L96

v-tooltip is not accessible and we want to migrate to native tooltips (title attribute) instead. An overview can be found in https://github.com/nextcloud/nextcloud-vue/issues/2503

Solution

Add a title prop to several components that will render as title attribute on the HTML element.

[ChristophWurst]

An example can be found in

in?