⚡ increase internal vue-performance in Identicon

[vikiival]

Context

As per patch merged in - kodadot/nft-gallery#11246
@preschian found out that a warning comes from the Vue identicon, this is caused by the fact that 3rd param of h should accept a function for slots rather than array.

Reading

kodadot/nft-gallery#11246 (comment)

• Nested slots causes a warning vuejs/test-utils#512
• https://github.com/vuejs/test-utils/blob/96ef276735ce188f50daa2b4143b80a4d716a44d/tests/element.spec.ts#L89-L100
• https://github.com/vuejs/test-utils/blob/96ef276735ce188f50daa2b4143b80a4d716a44d/tests/element.spec.ts#L109-L122

[vikiival]

cc @TarikGul 🙏

[TarikGul]

Sorry for the delay.

Seems like a general build error with the following inputs not matching what is expected from the types.