Feature: `schemastery` support multiple select for array of union inside table

[Hieuzest]

Describe the problem related to the feature request

目前bitset/array of union无法在table内显示 即

Schema.array(Schema.object{
    types: Schema.array(Schema..union([...]))
}).role('table')

Describe the solution you'd like

<el-select multiple collapse-tags>

Describe alternatives you've considered

No response

Additional context

No response