feat: -v flag should log exact error on parse failure

quartz/build.ts

@@ -148,8 +148,11 @@ async function startServing(
       await rimraf(argv.output)
       await emitContent(ctx, filteredContent)
       console.log(chalk.green(`Done rebuilding in ${perf.timeSince()}`))
-    } catch {
+    } catch (err) {
       console.log(chalk.yellow(`Rebuild failed. Waiting on a change to fix the error...`))
+      if (argv.verbose) {
+        console.log(chalk.red(err))
+      }
     }
 
     release()