Remove tailwindcss/colors hack

Fixed in tailwindcss 3.1:
tailwindlabs/tailwindcss#8530

Author: mklein994

vite.config.ts

@@ -52,15 +52,6 @@ export default defineConfig(({ mode }) => {
       __PLAYGROUND_VUE_COVERAGE_EXISTS__: fs.existsSync(
         resolve("./public/coverage/index.html")
       ),
-      // HACK: Don't let tailwindcss/colors use process.env (since it's
-      // node-only).
-      //
-      // See https://github.com/tailwindlabs/tailwindcss/blob/fc25299aa64c78e2e1863aff80a27d17c1bc1584/src/util/log.js#L6
-      //
-      // A value that is not undefined here silences the deprecation logs,
-      // since the get() method is overridden for those colors.
-      "process.env.JEST_WORKER_ID":
-        mode === "development" ? "'some-defined-value'" : undefined,
     },
     resolve: {
       alias: {