Reconsider deprecation of `disable-multi-item-change`

[1valdis]

The deprecation notice suggests usage of multi: true option, but the problem is multi: true has no flexibility at all and sets the behavior for both internal and external calls (see feathersjs/feathers#2546), while the disableMultiItemChange hook be used conditionally, for example iff(isProvider('external'), disableMultiItemChange()). Due to its flexibility, I think its deprecation should be reconsidered and it could be included back to feathers-hooks-common.

[fratzinger]

Just a quick headsup. I started working on a massive rewrite of the package (#764). It's not released yet and will take a few weeks.

This should be working then, see https://github.com/feathersjs-ecosystem/feathers-hooks-common/blob/modernize/src/hooks/throw-if/throw-if-is-multi.ts