ActionInput: Fix documentation or add `inheritAttrs: true`

[st3iny]

ActionInput has inheritAttrs: false but tries to inherit attrs. Either add inheritAttrs: true or change the documentation.

Take a look at the second sentence of the documentation of ActionLink. Currently, it is not entirely true as inheritAttrs is false: All undocumented attributes will be bound to the input, the datepicker or the multiselect component, e.g. maxlength, not-before.

Originally posted by @tcitworld in https://github.com/nextcloud/nextcloud-vue/issues/2472#issuecomment-1030107397