fix(VTreeview): make sure toRaw is used on children#22640

Lisiadito wants to merge 1 commit intovuetifyjs:mastervuetifyjs/vuetify:masterfrom

Lisiadito:fix/22533-search-return-object-not-returning-childrenLisiadito/vuetify:fix/22533-search-return-object-not-returning-childrenCopy head branch name to clipboard