Upgrade to Solid 2 RC#14

Summary

• upgrade Solid runtime and Babel preset from 2.0.0-beta.28 to 2.0.0-rc.1
• bump Ashlar from 0.2.0 to 0.3.0
• refresh the Bun lockfile

Verification

• bun install --frozen-lockfile
• bun run lint
• bun run typecheck
• bun run test (227 pass)
• bun run test:prod (227 pass)
• bun run build
• bun run verify:pack