refactor: remove --root and --port flags from astro preview command

This change allows Astro to resolve the configuration using the
astro.config.js with the eventcatalog.config.js and the cli options,
ensuring proper handling of the options.

See #1015 (comment)

src/eventcatalog.ts

@@ -123,16 +123,10 @@ program
   });
 
 const previewCatalog = ({ command }: { command: Command }) => {
-  /**
-   * TODO: get the port and outDir from the eventcatalog.config.js.
-   */
-  execSync(
-    `cross-env PROJECT_DIR='${dir}' CATALOG_DIR='${core}' npx astro preview --root ${dir} --port 3000 ${command.args.join(' ').trim()}`,
-    {
-      cwd: core,
-      stdio: 'inherit',
-    }
-  );
+  execSync(`cross-env PROJECT_DIR='${dir}' CATALOG_DIR='${core}' npx astro preview ${command.args.join(' ').trim()}`, {
+    cwd: core,
+    stdio: 'inherit',
+  });
 };
 
 program