docs(README): 优化项目介绍并更新多语言文案

更新了 README 文件和本地化文件中的项目介绍内容，使其更加简洁明了。

- 更新项目链接为 www.fflowlink.com
- 移除了冗余的标题和描述文本
- 调整了英文和中文版本的 "Your First SaaS Template" 文案
- 统一了 README 和 README_CN 文件的结构

这些更改旨在提高项目的第一印象，并确保中英文版本的一致性。

README.md

@@ -1,12 +1,7 @@
-<a href="https://next-saas-stripe-starter.vercel.app">
-  <img alt="FFlow Next" src="public/_static/og.jpg">
-  <h1 align="center">FFlow Next: Your First SaaS Template</h1>
+<a href="https://www.fflowlink.com">
+  <img alt="FFlow Next: Your First SaaS Template" src="public/_static/og.jpg">
 </a>
 
-<p align="center">
-  Start at full speed with FFlow Next!
-</p>
-
 <p align="center">
   <a href="https://twitter.com/hunterzhang86">
     <img src="https://img.shields.io/twitter/follow/hunterzhang86?style=flat&label=hunterzhang86&logo=twitter&color=0bf&logoColor=fff" alt="NoOne Twitter follower count" />

README_CN.md

@@ -1,12 +1,7 @@
-<a href="https://next-saas-stripe-starter.vercel.app">
-  <img alt="FFlow Next" src="public/_static/og_zh.jpg">
-  <h1 align="center">FFlow Next: 您的第一个 SaaS 模板</h1>
+<a href="https://www.fflowlink.com">
+  <img alt="FFlow Next: 您的第一个 SaaS 模板" src="public/_static/og_zh.jpg">
 </a>
 
-<p align="center">
-  帮助您全速启动 SaaS 项目！
-</p>
-
 <p align="center">
   <a href="https://twitter.com/hunterzhang86">
     <img src="https://img.shields.io/twitter/follow/hunterzhang86?style=flat&label=hunterzhang86&logo=twitter&color=0bf&logoColor=fff" alt="NoOne Twitter 关注数" />

src/locales/en.json

@@ -4,7 +4,7 @@
   },
   "HeroLanding": {
     "introducing": "Introducing",
-    "kickoff": "Kick off with a bang with",
+    "kickoff": "Your First SaaS Template: ",
     "saasStarter": "FFlow Next",
     "description": "Build your next project using Next.js 14, Drizzle ORM, Neon, Auth.js v5, Resend, React Email, Shadcn/ui, Stripe.",
     "goPricing": "Go Pricing",

src/locales/zh.json

@@ -4,7 +4,7 @@
   },
   "HeroLanding": {
     "introducing": "介绍",
-    "kickoff": "帮助您快速启航",
+    "kickoff": "您的第一个 SaaS 模板：",
     "saasStarter": "FFlow Next",
     "description": "使用 Next.js 14、Drizzle ORM、Neon、Auth.js v5、Resend、React Email、Shadcn/ui、Stripe 构建您的下一个 SaaS 项目。",
     "goPricing": "查看定价",