perf: improve performance

[marcelltoth]

Times in parenthesis are mounting times of the 2x-stress schema story in Storybook.

• Bumps @stoplightio/json-schema-merge-allof (1660ms -> 1590ms)
• Removes trivial mosaic components from the performance-critical rendering paths: SchemaRow and beyond (1590ms -> 850ms)

The problem with mosaic components is that for almost 0 gain (beyond type-checking of style-props), you render yet another element, and especially yet another forwardRef-ed element, both of which eat up performance as you scale.

[stoplight-bot]

:tada: This PR is included in version 4.0.0-beta.4 :tada:

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

Your semantic-release bot :package::rocket:

[stoplight-bot]

:tada: This PR is included in version 4.0.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: