docs: fix link in banner and refactor version links

Author: tmlmt

docs/.vitepress/config.mts

@@ -3,7 +3,6 @@ import { defineConfig } from "vitepress";
 // @ts-ignore: linting before typedoc is generated will throw an error here
 import typedocSidebar from "../api/typedoc-sidebar.json";
 import { fullVersion, majorVersion, majorNumber } from "./version";
-import { isProd, siteUrl } from "./constants";
 
 // https://vitepress.dev/reference/site-config
 export default defineConfig({
@@ -24,9 +23,8 @@ export default defineConfig({
           { text: fullVersion, link: "/" },
           {
             text: majorNumber === 2 ? "v3" : "v2",
-            link: isProd
-              ? `${siteUrl}/${majorNumber === 2 ? "v3" : "v2"}/`
-              : `/${majorNumber === 2 ? "v3" : "v2"}/`,
+            link: `../${majorNumber === 2 ? "v3" : "v2"}/`,
+            target: "_self",
           },
         ],
       },

docs/.vitepress/constants.ts

@@ -1,7 +1,6 @@
 <script setup lang="ts">
 import DefaultTheme from "vitepress/theme";
 import { isPrerelease, majorVersion } from "../version";
-import { isProd, siteUrl } from "../constants";
 
 const { Layout } = DefaultTheme;
 </script>
@@ -11,7 +10,7 @@ const { Layout } = DefaultTheme;
     <template #layout-top>
       <div v-if="isPrerelease" class="prerelease-banner top-banner">
         ⚠️ This is pre-release documentation for {{ majorVersion }}. For stable docs,
-        visit <a :href="isProd ? `${siteUrl}/v2/` : `/v2/`">v2</a>.
+        visit <a href="../v2/`" target="_self">v2</a>.
       </div>
       <component v-if="isPrerelease" :is="'style'">
         :root { --vp-layout-top-height: 37px; }