docs: replace vuex link with pinia

Author: haoqunjiang

template/code/default/src/components/TheWelcome.vue

@@ -47,7 +47,7 @@ import SupportIcon from './icons/IconSupport.vue'
     <template #heading>Ecosystem</template>
 
     Get official tools and libraries for your project:
-    <a target="_blank" href="https://next.vuex.vuejs.org/">Vuex</a>,
+    <a target="_blank" href="https://pinia.vuejs.org/">Pinia</a>,
     <a target="_blank" href="https://next.router.vuejs.org/">Vue Router</a>,
     <a target="_blank" href="https://next.vue-test-utils.vuejs.org/">Vue Test Utils</a>, and
     <a target="_blank" href="https://github.com/vuejs/devtools">Vue Dev Tools</a>. If you need more

template/code/router/src/components/TheWelcome.vue

@@ -47,7 +47,7 @@ import SupportIcon from './icons/IconSupport.vue'
     <template #heading>Ecosystem</template>
 
     Get official tools and libraries for your project:
-    <a target="_blank" href="https://next.vuex.vuejs.org/">Vuex</a>,
+    <a target="_blank" href="https://pinia.vuejs.org/">Pinia</a>,
     <a target="_blank" href="https://next.router.vuejs.org/">Vue Router</a>,
     <a target="_blank" href="https://next.vue-test-utils.vuejs.org/">Vue Test Utils</a>, and
     <a target="_blank" href="https://github.com/vuejs/devtools">Vue Dev Tools</a>. If you need more

template/code/typescript-default/src/components/TheWelcome.vue

@@ -47,7 +47,7 @@ import SupportIcon from './icons/IconSupport.vue'
     <template #heading>Ecosystem</template>
 
     Get official tools and libraries for your project:
-    <a target="_blank" href="https://next.vuex.vuejs.org/">Vuex</a>,
+    <a target="_blank" href="https://pinia.vuejs.org/">Pinia</a>,
     <a target="_blank" href="https://next.router.vuejs.org/">Vue Router</a>,
     <a target="_blank" href="https://next.vue-test-utils.vuejs.org/">Vue Test Utils</a>, and
     <a target="_blank" href="https://github.com/vuejs/devtools">Vue Dev Tools</a>. If you need more

template/code/typescript-router/src/components/TheWelcome.vue

@@ -47,7 +47,7 @@ import SupportIcon from './icons/IconSupport.vue'
     <template #heading>Ecosystem</template>
 
     Get official tools and libraries for your project:
-    <a target="_blank" href="https://next.vuex.vuejs.org/">Vuex</a>,
+    <a target="_blank" href="https://pinia.vuejs.org/">Pinia</a>,
     <a target="_blank" href="https://next.router.vuejs.org/">Vue Router</a>,
     <a target="_blank" href="https://next.vue-test-utils.vuejs.org/">Vue Test Utils</a>, and
     <a target="_blank" href="https://github.com/vuejs/devtools">Vue Dev Tools</a>. If you need more