CSS moar fixes

[zackradisic]

What does this PR do?

• Removes all occurrences of @panic(css.todo_stuff.depth) by either implementing the todo, or changing it with @compileError(css.todo_stuff.depth)
• Fixes an issue with syntax property on @property rule which was preventing tailwind generated css code from working
• Fixes an issue with printing calc(...) expressions which returned non-finite values
• Add tests for gradients and fix a bunch of issues related to them

[robobun]

❌ @zackradisic, your commit a62d7c1 has 15 failures in #7845:

test/cli/install/registry/bun-install-registry.test.ts - timeout on 🐧 3.20 aarch64

test/v8/v8.test.ts - 22 failing on 🐧 3.20 aarch64

test/v8/v8.test.ts - timeout on 🐧 12 aarch64

test/v8/v8.test.ts - timeout on 🐧 20.04 aarch64

test/v8/v8.test.ts - 22 failing on 🐧 3.20 x64-baseline

test/v8/v8.test.ts - 22 failing on 🐧 3.20 x64

test/js/bun/css/doesnt_crash.test.ts - 1 failing on 🐧 3.20 aarch64

test/js/bun/http/serve.test.ts - timeout on 🐧 12 x64-baseline

test/js/third_party/mongodb/mongodb.test.ts - 1 failing on 🐧 22.04 x64-baseline

test/js/deno/performance/performance.test.ts - 1 failing on 🐧 24.04 x64-baseline

test/js/deno/performance/performance.test.ts - 1 failing on 🐧 22.04 x64

test/js/node/test/parallel/test-net-sync-cork.js - code 1 on 🐧 12 aarch64

test/js/node/test/parallel/test-net-sync-cork.js - code 1 on 🐧 12 x64-baseline

test/js/node/test/parallel/test-net-sync-cork.js - code 1 on 🐧 12 x64

test/js/node/test/parallel/test-net-sync-cork.js - code 1 on 🐧 3.20 aarch64

test/js/node/test/parallel/test-net-sync-cork.js - code 1 on 🐧 3.20 x64

test/js/node/test/parallel/test-net-sync-cork.js - code 1 on 🐧 3.20 x64-baseline

test/cli/install/bun-run.test.ts - 1 failing on 🐧 20.04 aarch64

test/cli/install/bun-run.test.ts - 1 failing on 🐧 20.04 x64-baseline

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🐧 22.04 aarch64

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🐧 24.04 x64-baseline

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🐧 22.04 x64-baseline

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🐧 22.04 x64

test/js/node/fs/fs.test.ts - timeout on 🪟 2019 x64-baseline

test/js/node/fs/fs.test.ts - timeout on 🪟 2019 x64

test/cli/install/bun-create.test.ts - 1 failing on 🐧 24.04 aarch64

test/js/node/test/parallel/test-worker-process-exit-async-module.js - code 1 on 🐧 22.04 aarch64

test/js/node/test/parallel/test-worker-process-exit-async-module.js - code 1 on 🐧 24.04 x64

test/js/node/watch/fs.watchFile.test.ts - 1 failing on 🪟 2019 x64-baseline

test/integration/next-pages/test/dev-server-ssr-100.test.ts - 1 failing on 🪟 2019 x64-baseline

test/integration/next-pages/test/dev-server-ssr-100.test.ts - 1 failing on 🪟 2019 x64

test/js/bun/http/serve-body-leak.test.ts - 1 failing on 🍎 14 aarch64

test/js/bun/http/serve-body-leak.test.ts - 1 failing on 🪟 2019 x64-baseline

test/js/bun/http/serve-body-leak.test.ts - 1 failing on 🪟 2019 x64