fix: remove empty line when no module html snippets exist

Author: BracketJohn

src/steps/2.addModules/index.ts

@@ -68,8 +68,7 @@ export default defineNuxtConfig(${inspect(nuxtConfig, { compact: false })})
   const moduleIndexHtmlSnippets = selectedModules.map((module) => moduleConfigs[module].htmlForIndexVue).filter(html => typeof html !== "undefined")
   const nuxtPagesIndexVue = `<template>
   <div>
-    <h1 ${selectedModules.includes("tailwind") ? "class=\"text-4xl\"" : ""}>Welcome to your sidebase app!</h1>
-    ${moduleIndexHtmlSnippets.join("\n    ")}
+    <h1 ${selectedModules.includes("tailwind") ? "class=\"text-4xl\"" : ""}>Welcome to your sidebase app!</h1>${moduleIndexHtmlSnippets.length > 0 ? "\n" + moduleIndexHtmlSnippets.join("\n    ") : ""}
   </div>
 </template>
 `