feat: Introduce contextualBar surface renderer for UiKit blocks (#29697)

.changeset/popular-donkeys-laugh.md

apps/meteor/client/views/room/contextualBar/Apps/Apps.tsx

packages/fuselage-ui-kit/src/contexts/SurfaceContext.ts

packages/fuselage-ui-kit/src/contexts/kitContext.ts

...ges/fuselage-ui-kit/src/surfaces/ContextualBarSurface.tsx

...age-ui-kit/src/surfaces/FuselageContextualBarRenderer.tsx

packages/fuselage-ui-kit/src/surfaces/index.ts

packages/fuselage-ui-kit/src/utils/UiKitComponent.tsx

packages/uikit-playground/package.json

...mponents/Preview/Display/Surface/ContextualBarSurface.tsx

...ground/src/Components/Preview/Display/Surface/Surface.tsx

.../uikit-playground/src/Components/SurfaceSelect/options.ts

yarn.lock