docs(global): update Nuxt version references and improve getting started guides (#526)

Author: nicokempe

docs/content/1.getting-started/1.introduction.md

@@ -5,7 +5,7 @@ description: "@nuxtjs/supabase is a Nuxt module for first class integration with
 
 [@nuxtjs/supabase](https://github.com/nuxt-modules/supabase) is a Nuxt module for first class integration with Supabase.
 
-Checkout the [Nuxt 3](https://v3.nuxtjs.org) documentation and [Supabase](https://supabase.com) to learn more.
+Checkout the [Nuxt](https://nuxt.com/) documentation and [Supabase](https://supabase.com) to learn more.
 
 ::warning
 For integrating Supabase with Nuxt 2, checkout [supabase-community/nuxt-supabase](https://github.com/supabase-community/nuxt-supabase).

docs/content/2.composables/useSupabaseClient.md

@@ -44,7 +44,7 @@ Please also take a look at [Get Started](/getting-started/authentication) for th
 
 Please check [Supabase](https://supabase.com/docs/reference/javascript/select) documentation to fully use the power of Supabase client.
 
-Here is an example of a fetch using the `select` method with Nuxt 3 [useAsyncData](https://nuxt.com/docs/getting-started/data-fetching#useasyncdata) composable.
+Here is an example of a fetch using the `select` method with Nuxt [useAsyncData](https://nuxt.com/docs/getting-started/data-fetching#useasyncdata) composable.
 
 ```vue
 <script setup lang="ts">

docs/content/index.md

@@ -75,10 +75,10 @@ Shipped with many features
   to: https://nuxt.com
   ---
   #title
-  Nuxt 3 ready
-  
+  Nuxt 3 and 4 ready
+
   #description
-  Experience the power and flexibility of Nuxt 3, optimized for modern web development.
+  Experience the power and flexibility of Nuxt 3 and Nuxt 4, optimized for modern web development.
   :::
 
   :::u-page-feature