Fix Reactivity issue with library imports when changing version

packages/docs/src/.vitepress/theme/utils/useXOCashLibs.ts

@@ -9,7 +9,7 @@ export type ImportedLib = {
 export type XOCashLibs = {
   '@xocash/stack': ImportedLib;
   '@xocash/primitives': ImportedLib;
-}
+};
 
 const xocashLibs = reactive<XOCashLibs>({
   '@xocash/stack': {
@@ -64,8 +64,14 @@ export const useXOCashLibs = (): XOCashLibs => {
   // Fetch the versions and set the selected version when the component is mounted.
   onMounted(async () => {
     xocashLibs['@xocash/stack'].versions = await getVersions();
-    xocashLibs['@xocash/stack'].selectedVersion =
-      xocashLibs['@xocash/stack'].versions[xocashLibs['@xocash/stack'].versions.length - 1];
+
+    // Only update the selected version if it is not already set.
+    if (!xocashLibs['@xocash/stack'].selectedVersion) {
+      xocashLibs['@xocash/stack'].selectedVersion =
+        xocashLibs['@xocash/stack'].versions[
+          xocashLibs['@xocash/stack'].versions.length - 1
+        ];
+    }
   });
 
   return xocashLibs;