docs: redesign tabs (#5687)

* redesigned tabs

* design fixes

www/apps/docs/content/development/backend/prepare-environment.mdx

@@ -69,6 +69,8 @@ node -v
   </TabItem>
 </Tabs>
 
+---
+
 ## Git
 
 Medusa uses Git behind the scenes when you create a new project. So, you'll have to install it on your machine to get started.
@@ -99,6 +101,8 @@ Medusa uses Git behind the scenes when you create a new project. So, you'll have
   </TabItem>
 </Tabs>
 
+---
+
 ## PostgreSQL
 
 The Medusa backend uses PostgreSQL to store data of your commerce system.
@@ -126,6 +130,8 @@ The Medusa backend uses PostgreSQL to store data of your commerce system.
   </TabItem>
 </Tabs>
 
+---
+
 ## (Optional) Medusa CLI
 
 Medusa provides a CLI tool that can aid your through your Medusa development. You can install it globally, or you can use it through `npx`.